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Important Safety Update for XELJANZ® (tofacitinib)

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On Friday, December 3, 2021, the U.S. Food and Drug Administration (FDA) updated the XELJANZ full prescribing information. Pfizer issued a media statement announcing that the U.S. full prescribing information for XELJANZ® (tofacitinib) has been updated based on the U.S. FDA’s completed review of the ORAL Surveillance trial, a post-marketing required safety study. Talk to your healthcare provider if you have any questions or concerns about this safety update. Your healthcare provider should consider the benefits and risks of XELJANZ.

The safety information below applies to all marketed formulations of XELJANZ. Specific risks associated with certain dosing are noted.

As a result of this review, an additional warning for Major Cardiovascular Events, and updated warnings for Mortality, Cancer, and Blood Clots were included in the Boxed Warning and related Warnings and Precautions section of the prescribing information and in the Most Important Information I Should Know section of the patient Medication Guide for XELJANZ.

The updated Boxed Warning information regarding Mortality discusses the increased risk of death in people 50 years of age and older who have at least 1 heart disease (cardiovascular) risk factor taking recommended doses of XELJANZ.

The updated Boxed Warning regarding cancer discusses a higher risk of certain cancers, including lymphoma and lung cancer in patients taking XELJANZ, especially if you are a current or past smoker. Tell your healthcare provider if you are a current or past smoker or have had any type of cancer.

The new Boxed Warning includes information regarding increased risk of major cardiovascular events such as heart attack, stroke, or death in people 50 years of age and older who have at least 1 heart disease (cardiovascular) risk factor and are taking recommended doses of XELJANZ, especially if you are a current or past smoker.

Patients taking XELJANZ should seek medical attention right away or get emergency help if you have any symptoms of a heart attack or stroke, including:

  • discomfort in the center of your chest that lasts for more than a few minutes, or that goes away and comes back
  • severe tightness, pain, pressure, or heaviness in your chest, throat, neck, or jaw
  • pain or discomfort in your arms, back, neck, jaw, or stomach
  • shortness of breath with or without chest discomfort
  • breaking out in a cold sweat
  • nausea or vomiting
  • feeling lightheaded
  • weakness in one part or on one side of your body
  • slurred speech

The updated Boxed Warning regarding blood clots in the lungs (pulmonary embolism, PE), veins of the legs (deep vein thrombosis, DVT) and arteries (arterial thrombosis) discusses that blood clots have happened more often in patients who are 50 years of age and older and with at least 1 heart disease (cardiovascular) risk factor taking recommended doses of XELJANZ. Patients should tell their healthcare provider if they have had blood clots in the veins of their legs, arms, or lungs or clots in arteries in the past. Patients should always ask their doctors for medical advice about adverse events. You are encouraged to report adverse events related to Pfizer products by calling 1-800-438-1985 (U.S. only). If you prefer, you may contact the U.S. Food and Drug Administration (FDA) directly. Visit http://www.fda.gov/MedWatch or call 1-800-FDA-1088.

The FDA approved use of XELJANZ for adults with moderately to severely active rheumatoid arthritis, active psoriatic arthritis, and for children age 2 and over with polyarticular course juvenile idiopathic arthritis and now recommends use after one or more medicines called tumor necrosis factor (TNF) blockers did not work well or cannot be tolerated.

If you have any questions about these updates talk to your healthcare provider.

The updated Important Safety Information and Indications for XELJANZ are included below for your review.

It is also important to read the patient Medication Guide you receive with your XELJANZ prescriptions, which explains the important things you need to know about the medicine. These include side effects, what the medicine is used for, how to take and store it properly, and other things to watch for when you’re taking the medicine.

Information about Post-Marketing Safety Study

When the FDA first approved XELJANZ for adults with moderate to severe rheumatoid arthritis in 2012, the agency required a clinical safety trial to examine the risk for heart-related problems, cancer, and serious infections in XELJANZ compared to another type of medicine called tumor necrosis factor (TNF) blockers. This trial, known as Oral Surveillance enrolled 4,369 participants who were required to be at least 50 years of age and have at least one cardiovascular risk factor.

IMPORTANT SAFETY INFORMATION

The safety information below applies to all marketed formulations of XELJANZ. Specific risks associated with certain dosing are noted.

Serious infections. XELJANZ can lower the ability of your immune system to fight infections. Do not start taking XELJANZ if you have any kind of infection unless your healthcare provider tells you it is okay. Serious infections have happened in people taking XELJANZ. These serious infections include tuberculosis (TB) and infections caused by bacteria, fungi, or viruses that can spread throughout the body. Some people have died from these infections. Your healthcare provider should test you for TB before starting and during treatment with XELJANZ. You should not start taking XELJANZ if you have any kind of infection unless your healthcare professional tells you it is okay.

Before and after starting XELJANZ, tell your doctor if you have an infection or symptoms of an infection, including:

  • fever, sweating, or chills
  • cough
  • blood in phlegm
  • warm, red, or painful skin or sores on your body
  • burning when you urinate
  • urinating more often than normal
  • muscle aches
  • shortness of breath
  • weight loss
  • diarrhea or stomach pain
  • feeling very tired

Increased risk of death in people 50 years of age and older who have at least 1 heart disease (cardiovascular) risk factor and are taking XELJANZ 5 mg twice daily or XELJANZ 10 mg twice daily.

Cancer. XELJANZ may increase your risk of certain cancers by changing the way your immune system works. Lymphoma and other cancers, including skin cancers, can happen. People taking XELJANZ 5 mg twice daily or XELJANZ 10 mg twice daily have a higher risk of certain cancers including lymphoma and lung cancer, especially if you are a current or past smoker. Tell your healthcare provider if you have ever had any type of cancer.

Higher dose. People with ulcerative colitis taking the higher dose of XELJANZ (10 mg twice daily) or XELJANZ XR (22 mg one time each day) have a higher risk of serious infections, shingles, or skin cancers.

Immune system problem. Some people who have taken XELJANZ with certain other medicines to prevent kidney transplant rejection have had a problem with certain white blood cells growing out of control (Epstein Barr Virus–associated post-transplant lymphoproliferative disorder).

Increased risk of major cardiovascular events such as heart attack, stroke or death in people 50 years of age and older who have at least 1 heart disease (cardiovascular) risk factor and are taking XELJANZ 5 mg twice daily or XELJANZ 10 mg twice daily, especially if you are a current or past smoker.

Get emergency help right away if you have any symptoms of a heart attack or stroke while taking XELJANZ, including:

  • discomfort in the center of your chest that lasts for more than a few minutes, or that goes away and comes back
  • severe tightness, pain, pressure, or heaviness in your chest, throat, neck, or jaw
  • pain or discomfort in your arms, back, neck, jaw, or stomach
  • shortness of breath with or without chest discomfort
  • breaking out in a cold sweat
  • nausea or vomiting
  • feeling lightheaded
  • weakness in one part or on one side of your body
  • slurred speech

Blood clots in the lungs (pulmonary embolism, PE), veins of the legs (deep vein thrombosis, DVT), and arteries (arterial thrombosis) have happened more often in patients who are 50 years of age and older and with at least 1 heart disease (cardiovascular) risk factor taking XELJANZ 5 mg twice daily or XELJANZ 10 mg twice daily. Blood clots in the lungs have also happened in patients with ulcerative colitis. Some people have died from these blood clots.

  • Stop taking XELJANZ and tell your healthcare provider right away if you have any signs and symptoms of blood clots such as sudden shortness of breath, difficulty breathing, chest pain, swelling of a leg or arm, leg pain or tenderness, or red or discolored skin in the leg or arm.

Tears (perforation) in the stomach or intestines. Tell your healthcare provider if you have had diverticulitis (inflammation in parts of the large intestine) or ulcers in your stomach or intestines. Some people taking XELJANZ can get tears in their stomach or intestine. This happens most often in people who also take nonsteroidal anti-inflammatory drugs (NSAIDs), corticosteroids, or methotrexate. Tell your healthcare provider right away if you have fever, stomach-area pain that does not go away, and a change in your bowel habits.

Serious allergic reactions can occur. Stop using XELJANZ and call your healthcare provider right away if you have swelling of your lips, tongue, throat, or get hives.

Changes in certain lab test results. Your doctor should do blood tests to check your white and red blood cells before and while you are taking XELJANZ. Your doctor should also check certain liver tests. You should not receive XELJANZ if your lymphocyte count, neutrophil count, or red blood cell count is too low or your liver function test levels are too high. Changes in lab test results may cause your healthcare provider to stop your XELJANZ treatment for a time. Your cholesterol levels should be checked 4 to 8 weeks after you start receiving XELJANZ.

Before you use XELJANZ, tell your healthcare provider if you:

  • Are being treated for an infection, have an infection that won’t go away or keeps coming back, or think you have symptoms of an infection
  • Have TB, or have been in close contact with someone with TB, or were born in, lived in, or traveled where there is more risk for getting TB
  • Have diabetes, chronic lung disease, HIV, or a weak immune system. People with these conditions have a higher chance for infections
  • Live or have lived in certain areas (such as Ohio and Mississippi River Valleys and the Southwest) where there is an increased chance for getting certain kinds of fungal infections
  • Have or have had Hepatitis B or C
  • Are a current or past smoker
  • Have had any type of cancer
  • Have had a heart attack, other heart problems or stroke
  • Have had blood clots
  • Have liver or kidney problems
  • Have any stomach area (abdominal) pain or been diagnosed with diverticulitis or ulcers in your stomach or intestines
  • Have recently received or plan to receive a vaccine. People taking XELJANZ should not receive live vaccines but can receive non-live vaccines
  • Are pregnant, planning to become pregnant, breastfeeding, or planning to breastfeed. You should not take XELJANZ and breastfeed
  • Have had a reaction to tofacitinib or any of the ingredients
  • Are taking other medicines, including prescription and over-the-counter medicines, vitamins, and herbal supplements. Especially tell your healthcare provider if you take any of the following medicines while taking XELJANZ since this may increase your risk of infection:
    • tocilizumab (Actemra®)
    • etanercept (Enbrel®)
    • adalimumab (Humira®)
    • infliximab (Remicade®)
    • rituximab (Rituxan®)
    • abatacept (Orencia®)
    • anakinra (Kineret®)
    • certolizumab (Cimzia®)
    • golimumab (Simponi®)
    • ustekinumab (Stelara®)
    • secukinumab (Cosentyx®)
    • vedolizumab (Entyvio®)
    • sarilumab (Kevzara®)
    • azathioprine, cyclosporine, or other immunosuppressive drugs
  • Tell your healthcare provider if you are taking medicines that affect the way certain liver enzymes work. Ask your healthcare provider if you are not sure if your medicine is one of these.

What are other possible side effects of XELJANZ/XELJANZ XR?

If you are a carrier of the Hepatitis B or C virus (viruses that affect the liver), the virus may become active while you use XELJANZ. Your healthcare provider may do blood tests before starting and while using treatment with XELJANZ. Tell your healthcare provider if you have any signs of these symptoms: feel very tired, little or no appetite, clay-colored bowel movements, chills, muscle aches, skin rash, skin or eyes look yellow, vomiting, fevers, stomach discomfort, or dark urine.

Common side effects in adults with rheumatoid arthritis and psoriatic arthritis include upper respiratory tract infections (common cold, sinus infections), headache, diarrhea, nasal congestion, sore throat, runny nose (nasopharyngitis), and high blood pressure (hypertension).

Common side effects in adults with ulcerative colitis include nasal congestion, sore throat, runny nose (nasopharyngitis), increased cholesterol levels, headache, upper respiratory tract infections (common cold, sinus infections), increased muscle enzyme levels, rash, diarrhea, and shingles (herpes zoster).

Common side effects in children (2 & older) with polyarticular course juvenile arthritis include upper respiratory tract infections (common cold, sinus infections), nasal congestion, sore throat, and runny nose (nasopharyngitis), headache, fever, nausea, and vomiting.

XELJANZ & Pregnancy

XELJANZ may affect the ability of females to get pregnant. It is not known if this will change after stopping XELJANZ. It is not known if XELJANZ will harm an unborn baby.

  • Pregnancy Registry: Pfizer has a registry for pregnant women who take XELJANZ. The purpose of this registry is to check the health of the pregnant mother and her baby. If you are pregnant or become pregnant while taking XELJANZ, talk to your healthcare provider about how you can join this pregnancy registry or you may contact the registry at 1-877-311-8972 to enroll.

You and your healthcare provider should decide if you will take XELJANZ or breastfeed. You should not do both. After you stop your treatment with XELJANZ do not start breastfeeding again until 18 hours after your last dose of XELJANZ or 36 hours after your last dose of XELJANZ XR.

What is XELJANZ/​XELJANZ XR/XELJANZ Oral Solution?

XELJANZ/XELJANZ XR (tofacitinib) is used to treat adults with:

  • Moderately to severely active rheumatoid arthritis when 1 or more medicines called tumor necrosis factor (TNF) blockers have been used, and did not work well or cannot be tolerated
  • Active psoriatic arthritis when 1 or more tumor necrosis factor (TNF) blocker medicines have been used, and did not work well or cannot be tolerated
  • Moderately to severely active ulcerative colitis when 1 or more tumor necrosis factor (TNF) blocker medicines have been used, and did not work well or cannot be tolerated

XELJANZ/XELJANZ Oral Solution is used to treat patients 2 years of age and older with:

  • Active polyarticular course juvenile arthritis when 1 or more tumor necrosis factor (TNF) blocker medicines have been used, and did not work well or cannot be tolerated

It is not known if XELJANZ/XELJANZ XR is safe and effective in people with Hepatitis B or C.

XELJANZ/XELJANZ XR/XELJANZ Oral Solution is not recommended for people with severe liver problems.

It is not known if XELJANZ/XELJANZ Oral Solution is safe and effective in children for treatment other than active polyarticular course juvenile arthritis.

It is not known if XELJANZ XR is safe and effective in children.

Please see full Prescribing Information, including BOXED WARNING and Medication Guide.

Considering a Different Treatment For Your Child’s Active Polyarticular Course Juvenile Idiopathic Arthritis (JIA)?

Ask your doctor if XELJANZ—the first and only JAK inhibitor approved to treat active polyarticular course JIA in children ages 2 and older who have tried TNF blockers—might be right for your child.
How is XELJANZ available to be prescribed for children ages 2 and older with active polyarticular course JIA?
XELJANZ Oral Solution (1 mg/mL)
Who Is It For?

Children ages 2 and older

weighing at least 22 lb.

How Is It Delivered?

Oral Solution, grape-flavored

Always use the oral dosing syringe that comes with XELJANZ Oral Solution to measure and take your prescribed dose. Ask your healthcare provider or pharmacist to show you how to measure your prescribed dose if you are not sure.

When Is It Taken?

2 times a day, with or without food

XELJANZ Tablet (5 mg)
Who Is It For?

Children ages 2 and

older weighing at least 88 lb.

How Is It Delivered?

Pill

When Is It Taken?

2 times a day, with or without food

If you take too much XELJANZ or XELJANZ Oral Solution, call your healthcare provider or go to the nearest hospital emergency room right away

XELJANZ XR should not be used instead of XELJANZ Oral Solution

Questions About XELJANZ and XELJANZ Oral Solution

What is XELJANZ?

XELJANZ is a prescription medicine called a Janus kinase (JAK) inhibitor. XELJANZ (tofacitinib) is used to treat patients 2 years of age and older with active polyarticular course juvenile idiopathic arthritis when 1 or more tumor necrosis factor (TNF) blocker medicines have been used, and did not work well or cannot be tolerated.

What is XELJANZ Oral Solution?

XELJANZ Oral Solution is used to treat patients 2 years of age and older with active polyarticular course juvenile idiopathic arthritis when 1 or more tumor necrosis factor (TNF) blocker medicines have been used, and did not work well or cannot be tolerated. XELJANZ Oral Solution 1 mg/mL is a grape flavored, clear, colorless solution. Always use the oral dosing syringe that comes with XELJANZ Oral Solution to measure and take your prescribed dose. Ask your healthcare provider or pharmacist to show you how to measure your prescribed dose if you are not sure. Take XELJANZ Oral Solution 2 times a day with or without food.

What is the Most Important Information I should know about XELJANZ/​XELJANZ Oral Solution?

The safety information below applies to all marketed formulations of XELJANZ. Specific risks associated with certain dosing are noted.

Serious infections. XELJANZ can lower the ability of your immune system to fight infections. Do not start taking XELJANZ if you have any kind of infection unless your healthcare provider tells you it is okay. Serious infections have happened in people taking XELJANZ. These serious infections include tuberculosis (TB) and infections caused by bacteria, fungi, or viruses that can spread throughout the body. Some people have died from these infections. Your healthcare provider should test you for TB before starting and during treatment with XELJANZ. You should not start taking XELJANZ if you have any kind of infection unless your healthcare professional tells you it is okay.

Before and after starting XELJANZ, tell your doctor if you have an infection or symptoms of an infection, including:

  • • fever, sweating, or chills
  • • cough
  • • blood in phlegm
  • • warm, red, or painful skin or sores on your body
  • • burning when you urinate
  • • urinating more often than normal
  • • muscle aches
  • • shortness of breath
  • • weight loss
  • • diarrhea or stomach pain
  • • feeling very tired

Increased risk of death in people 50 years of age and older who have at least 1 heart disease (cardiovascular) risk factor and are taking XELJANZ 5 mg twice daily or XELJANZ 10 mg twice daily.

Cancer. XELJANZ may increase your risk of certain cancers by changing the way your immune system works. Lymphoma and other cancers, including skin cancers, can happen. People taking XELJANZ 5 mg twice daily or XELJANZ 10 mg twice daily have a higher risk of certain cancers including lymphoma and lung cancer, especially if you are a current or past smoker. Tell your healthcare provider if you have ever had any type of cancer.

Higher dose. People with ulcerative colitis taking the higher dose of XELJANZ (10 mg twice daily) or XELJANZ XR (22 mg one time each day) have a higher risk of serious infections, shingles, or skin cancers.

Immune system problem. Some people who have taken XELJANZ with certain other medicines to prevent kidney transplant rejection have had a problem with certain white blood cells growing out of control (Epstein Barr Virus–associated post-transplant lymphoproliferative disorder).

Increased risk of major cardiovascular events such as heart attack, stroke or death in people 50 years of age and older who have at least 1 heart disease (cardiovascular) risk factor and are taking XELJANZ 5 mg twice daily or XELJANZ 10 mg twice daily, especially if you are a current or past smoker.

Get emergency help right away if you have any symptoms of a heart attack or stroke while taking XELJANZ, including:

  • discomfort in the center of your chest that lasts for more than a few minutes, or that goes away and comes back
  • severe tightness, pain, pressure, or heaviness in your chest, throat, neck, or jaw
  • pain or discomfort in your arms, back, neck, jaw, or stomach
  • shortness of breath with or without chest discomfort
  • breaking out in a cold sweat
  • nausea or vomiting
  • feeling lightheaded
  • weakness in one part or on one side of your body
  • slurred speech

Blood clots in the lungs (pulmonary embolism, PE), veins of the legs (deep vein thrombosis, DVT), and arteries (arterial thrombosis) have happened more often in patients who are 50 years of age and older and with at least 1 heart disease (cardiovascular) risk factor taking XELJANZ 5 mg twice daily or XELJANZ 10 mg twice daily. Blood clots in the lungs have also happened in patients with ulcerative colitis. Some people have died from these blood clots.

  • Stop taking XELJANZ and tell your healthcare provider right away if you have any signs and symptoms of blood clots such as sudden shortness of breath, difficulty breathing, chest pain, swelling of a leg or arm, leg pain or tenderness, or red or discolored skin in the leg or arm.

Tears (perforation) in the stomach or intestines. Tell your healthcare provider if you have had diverticulitis (inflammation in parts of the large intestine) or ulcers in your stomach or intestines. Some people taking XELJANZ can get tears in their stomach or intestine. This happens most often in people who also take nonsteroidal anti-inflammatory drugs (NSAIDs), corticosteroids, or methotrexate. Tell your healthcare provider right away if you have fever, stomach-area pain that does not go away, and a change in your bowel habits.

Serious allergic reactions can occur. Stop using XELJANZ and call your healthcare provider right away if you have swelling of your lips, tongue, throat, or get hives.

Changes in certain lab test results. Your doctor should do blood tests to check your white and red blood cells before and while you are taking XELJANZ. Your doctor should also check certain liver tests. You should not receive XELJANZ if your lymphocyte count, neutrophil count, or red blood cell count is too low or your liver function test levels are too high. Changes in lab test results may cause your healthcare provider to stop your XELJANZ treatment for a time. Your cholesterol levels should be checked 4 to 8 weeks after you start receiving XELJANZ.

These are not all of the possible side effects of XELJANZ/XELJANZ Oral Solution. Learn more and read the Medication Guide.

How should I store XELJANZ Oral Solution?

Store XELJANZ Oral Solution at room temperature between 20°C to 25°C (68°F to 77°F). Always store XELJANZ in its original bottle and carton in order to protect from light. Keep XELJANZ and all medicines out of the reach of children.

What should I tell my child’s (2 or older) healthcare provider before starting with XELJANZ/XELJANZ Oral Solution?

Before you use XELJANZ, tell your healthcare provider if you:

  • • Are being treated for an infection, have an infection that won’t go away or keeps coming back, or think you have symptoms of an infection
  • • Have TB, or have been in close contact with someone with TB, or were born in, lived in, or traveled where there is more risk for getting TB
  • • Have diabetes, chronic lung disease, HIV, or a weak immune system. People with these conditions have a higher chance for infections
  • • Live or have lived in certain areas (such as Ohio and Mississippi River Valleys and the Southwest) where there is an increased chance for getting certain kinds of fungal infections
  • • Have or have had Hepatitis B or C
  • • Are a current or past smoker
  • • Have had any type of cancer
  • • Have had a heart attack, other heart problems or stroke
  • • Have had blood clots
  • • Have liver or kidney problems
  • • Have any stomach area (abdominal) pain or been diagnosed with diverticulitis or ulcers in your stomach or intestines
  • • Have recently received or plan to receive a vaccine. People taking XELJANZ should not receive live vaccines but can receive non-live vaccines
  • • Are pregnant, planning to become pregnant, breastfeeding, or planning to breastfeed. You should not take XELJANZ and breastfeed
  • • Have had a reaction to tofacitinib or any of the ingredients
  • • Are taking other medicines, including prescription and over-the-counter medicines, vitamins, and herbal supplements. Especially tell your healthcare provider if you take any of the following medicines while taking XELJANZ since this may increase your risk of infection:

    • tocilizumab (Actemra®)

    • etanercept (Enbrel®)

    • adalimumab (Humira®)

    • infliximab (Remicade®)

    • rituximab (Rituxan®)

    • abatacept (Orencia®)

    • anakinra (Kineret®)

    • certolizumab (Cimzia®)

    • golimumab (Simponi®)

    • ustekinumab (Stelara®)

    • secukinumab (Cosentyx®)

    • vedolizumab (Entyvio®)

    • sarilumab (Kevzara®)

    • azathioprine, cyclosporine, or other immunosuppressive drugs

  • • Tell your healthcare provider if you are taking medicines that affect the way certain liver enzymes work. Ask your healthcare provider if you are not sure if your medicine is one of these.

These are not all of the possible side effects of XELJANZ/XELJANZ Oral Solution. Learn more and read the Medication Guide.

What are possible side effects of XELJANZ/XELJANZ Oral Solution?

See Most Important Information I should know about XELJANZ/XELJANZ Oral Solution


If you are a carrier of the Hepatitis B or C virus (viruses that affect the liver), the virus may become active while you use XELJANZ. Your healthcare provider may do blood tests before starting and while using treatment with XELJANZ. Tell your healthcare provider if you have any signs of these symptoms: feel very tired, little or no appetite, clay-colored bowel movements, chills, muscle aches, skin rash, skin or eyes look yellow, vomiting, fevers, stomach discomfort, or dark urine.


Common side effects in children (2 & older) with polyarticular course juvenile arthritis include upper respiratory tract infections (common cold, sinus infections), nasal congestion, sore throat, and runny nose (nasopharyngitis), headache, fever, nausea, and vomiting.

These are not all of the possible side effects of XELJANZ/XELJANZ Oral Solution. Learn more and read the Medication Guide.

Co-Pay Savings Card

Our Co-Pay Savings Card may reduce out-of-pocket cost for eligible, commercially insured caregivers of children ages 2 and older prescribed XELJANZ. Terms and conditions/eligibility requirements apply.

There are two ways you can get a Co-Pay Savings Card.

SMS ICON

Elect to receive one via text message by texting “XPROGRAM” to 50336 and enrolling in the XSAVINGS Co-Pay Program for XELJANZ.

ARROW DOWN ICON

Follow the directions to print a card or save it to your digital wallet immediately after registering.

To activate your card, call 1-844-935-5269 and say “Activate.”

For eligible underinsured or uninsured patients, XELSOURCE may offer financial assistance through the Pfizer Patient Assistance Program. Call XELSOURCE to learn more about these programs. Terms and conditions/eligibility requirements apply.

Mobile Terms and Conditions Apply. Msg and data rates may apply. Msg frequency varies. Text HELP for info, STOP to opt out.

Share Your Story

Has your child, age 2 or older, been diagnosed with active polyarticular course juvenile idiopathic arthritis, and been prescribed XELJANZ? We want to hear from you!

Your story is important—particularly for other caregivers who are considering treatment for their children. If selected, your story may appear on XELJANZ.com and/or in other marketing materials. Certain criteria must be met for consideration.

Email us at MyStory@pfizer.com or call 1-800-674-3194.

Indications Indaication Modal

XELJANZ/XELJANZ XR (tofacitinib) is used to treat adults who have tried TNF blockers with:

  • Moderately to severely active rheumatoid arthritis when 1 or more medicines called tumor necrosis factor (TNF) blockers have been used, and did not work well or cannot be tolerated
  • Active psoriatic arthritis when 1 or more tumor necrosis factor (TNF) blocker medicines have been used, and did not work well or cannot be tolerated
  • Moderately to severely active ulcerative colitis when 1 or more tumor necrosis factor (TNF) blocker medicines have been used, and did not work well or cannot be tolerated

XELJANZ/XELJANZ Oral Solution is used to treat patients 2 years of age and older with:

  • Active polyarticular course juvenile arthritis when 1 or more tumor necrosis factor (TNF) blocker medicines have been used, and did not work well or cannot be tolerated

It is not known if XELJANZ/XELJANZ XR is safe and effective in people with Hepatitis B or C.

XELJANZ/XELJANZ XR/XELJANZ Oral Solution is not recommended for people with severe liver problems.

It is not known if XELJANZ/XELJANZ Oral Solution is safe and effective in children for treatment other than active polyarticular course juvenile arthritis.

It is not known if XELJANZ XR is safe and effective in children.

XELJANZ/XELJANZ XR (tofacitinib) is used to treat adults who have tried TNF blockers with:

  • Moderately to severely active rheumatoid » Read More
Important Safety Information ISI Modal

The safety information below applies to all marketed formulations of XELJANZ. Specific risks associated with certain dosing are noted.

Serious infections. XELJANZ can lower the ability of your immune system to fight infections. Do not start taking XELJANZ if you have any kind of infection unless your healthcare provider tells you it is okay. Serious infections have happened in people taking XELJANZ. These serious infections include tuberculosis (TB) and infections caused by bacteria, fungi, or viruses that can spread throughout the body. Some people have died from these infections. Your healthcare provider should test you for TB before starting and during treatment with XELJANZ. You should not start taking XELJANZ if you have any kind of infection unless your healthcare professional tells you it is okay.

Before and after starting XELJANZ, tell your doctor if you have an infection or symptoms of an infection, including:

  • fever, sweating, or chills
  • cough
  • blood in phlegm
  • warm, red, or painful skin or sores on your body
  • burning when you urinate
  • urinating more often than normal
  • muscle aches
  • shortness of breath
  • weight loss
  • diarrhea or stomach pain
  • feeling very tired

Increased risk of death in people 50 years of age and older who have at least 1 heart disease (cardiovascular) risk factor and are taking XELJANZ 5 mg twice daily or XELJANZ 10 mg twice daily.

Cancer. XELJANZ may increase your risk of certain cancers by changing the way your immune system works. Lymphoma and other cancers, including skin cancers, can happen. People taking XELJANZ 5 mg twice daily or XELJANZ 10 mg twice daily have a higher risk of certain cancers including lymphoma and lung cancer, especially if you are a current or past smoker. Tell your healthcare provider if you have ever had any type of cancer.

Higher dose. People with ulcerative colitis taking the higher dose of XELJANZ (10 mg twice daily) or XELJANZ XR (22 mg one time each day) have a higher risk of serious infections, shingles, or skin cancers.

Immune system problem. Some people who have taken XELJANZ with certain other medicines to prevent kidney transplant rejection have had a problem with certain white blood cells growing out of control (Epstein Barr Virus–associated post-transplant lymphoproliferative disorder).

Increased risk of major cardiovascular events such as heart attack, stroke or death in people 50 years of age and older who have at least 1 heart disease (cardiovascular) risk factor and are taking XELJANZ 5 mg twice daily or XELJANZ 10 mg twice daily, especially if you are a current or past smoker.

Get emergency help right away if you have any symptoms of a heart attack or stroke while taking XELJANZ, including:

  • discomfort in the center of your chest that lasts for more than a few minutes, or that goes away and comes back
  • severe tightness, pain, pressure, or heaviness in your chest, throat, neck, or jaw
  • pain or discomfort in your arms, back, neck, jaw, or stomach
  • shortness of breath with or without chest discomfort
  • breaking out in a cold sweat
  • nausea or vomiting
  • feeling lightheaded
  • weakness in one part or on one side of your body
  • slurred speech

Blood clots in the lungs (pulmonary embolism, PE), veins of the legs (deep vein thrombosis, DVT), and arteries (arterial thrombosis) have happened more often in patients who are 50 years of age and older and with at least 1 heart disease (cardiovascular) risk factor taking XELJANZ 5 mg twice daily or XELJANZ 10 mg twice daily. Blood clots in the lungs have also happened in patients with ulcerative colitis. Some people have died from these blood clots.

  • Stop taking XELJANZ and tell your healthcare provider right away if you have any signs and symptoms of blood clots such as sudden shortness of breath, difficulty breathing, chest pain, swelling of a leg or arm, leg pain or tenderness, or red or discolored skin in the leg or arm.

Tears (perforation) in the stomach or intestines. Tell your healthcare provider if you have had diverticulitis (inflammation in parts of the large intestine) or ulcers in your stomach or intestines. Some people taking XELJANZ can get tears in their stomach or intestine. This happens most often in people who also take nonsteroidal anti-inflammatory drugs (NSAIDs), corticosteroids, or methotrexate. Tell your healthcare provider right away if you have fever, stomach-area pain that does not go away, and a change in your bowel habits.

Serious allergic reactions can occur. Stop using XELJANZ and call your healthcare provider right away if you have swelling of your lips, tongue, throat, or get hives.

Changes in certain lab test results. Your doctor should do blood tests to check your white and red blood cells before and while you are taking XELJANZ. Your doctor should also check certain liver tests. You should not receive XELJANZ if your lymphocyte count, neutrophil count, or red blood cell count is too low or your liver function test levels are too high. Changes in lab test results may cause your healthcare provider to stop your XELJANZ treatment for a time. Your cholesterol levels should be checked 4 to 8 weeks after you start receiving XELJANZ.

Before you use XELJANZ, tell your healthcare provider if you:

  • Are being treated for an infection, have an infection that won’t go away or keeps coming back, or think you have symptoms of an infection
  • Have TB, or have been in close contact with someone with TB, or were born in, lived in, or traveled where there is more risk for getting TB
  • Have diabetes, chronic lung disease, HIV, or a weak immune system. People with these conditions have a higher chance for infections
  • Live or have lived in certain areas (such as Ohio and Mississippi River Valleys and the Southwest) where there is an increased chance for getting certain kinds of fungal infections
  • Have or have had Hepatitis B or C
  • Are a current or past smoker
  • Have had any type of cancer
  • Have had a heart attack, other heart problems or stroke
  • Have had blood clots
  • Have liver or kidney problems
  • Have any stomach area (abdominal) pain or been diagnosed with diverticulitis or ulcers in your stomach or intestines
  • Have recently received or plan to receive a vaccine. People taking XELJANZ should not receive live vaccines but can receive non-live vaccines
  • Are pregnant, planning to become pregnant, breastfeeding, or planning to breastfeed. You should not take XELJANZ and breastfeed
  • Have had a reaction to tofacitinib or any of the ingredients
  • Are taking other medicines, including prescription and over-the-counter medicines, vitamins, and herbal supplements. Especially tell your healthcare provider if you take any of the following medicines while taking XELJANZ since this may increase your risk of infection:
    • tocilizumab (Actemra®)
    • etanercept (Enbrel®)
    • adalimumab (Humira®)
    • infliximab (Remicade®)
    • rituximab (Rituxan®)
    • abatacept (Orencia®)
    • anakinra (Kineret®)
    • certolizumab (Cimzia®)
    • golimumab (Simponi®)
    • ustekinumab (Stelara®)
    • secukinumab (Cosentyx®)
    • vedolizumab (Entyvio®)
    • sarilumab (Kevzara®)
    • azathioprine, cyclosporine, or other immunosuppressive drugs
  • Tell your healthcare provider if you are taking medicines that affect the way certain liver enzymes work. Ask your healthcare provider if you are not sure if your medicine is one of these.

What are other possible side effects of XELJANZ/XELJANZ XR?

If you are a carrier of the Hepatitis B or C virus (viruses that affect the liver), the virus may become active while you use XELJANZ. Your healthcare provider may do blood tests before starting and while using treatment with XELJANZ. Tell your healthcare provider if you have any signs of these symptoms: feel very tired, little or no appetite, clay-colored bowel movements, chills, muscle aches, skin rash, skin or eyes look yellow, vomiting, fevers, stomach discomfort, or dark urine.

Common side effects in adults with rheumatoid arthritis and psoriatic arthritis include upper respiratory tract infections (common cold, sinus infections), headache, diarrhea, nasal congestion, sore throat, runny nose (nasopharyngitis), and high blood pressure (hypertension).

Common side effects in adults with ulcerative colitis include nasal congestion, sore throat, runny nose (nasopharyngitis), increased cholesterol levels, headache, upper respiratory tract infections (common cold, sinus infections), increased muscle enzyme levels, rash, diarrhea, and shingles (herpes zoster).

Common side effects in children (2 & older) with polyarticular course juvenile arthritis include upper respiratory tract infections (common cold, sinus infections), nasal congestion, sore throat, and runny nose (nasopharyngitis), headache, fever, nausea, and vomiting.

XELJANZ & Pregnancy

XELJANZ may affect the ability of females to get pregnant. It is not known if this will change after stopping XELJANZ. It is not known if XELJANZ will harm an unborn baby.

  • Pregnancy Registry: Pfizer has a registry for pregnant women who take XELJANZ. The purpose of this registry is to check the health of the pregnant mother and her baby. If you are pregnant or become pregnant while taking XELJANZ, talk to your healthcare provider about how you can join this pregnancy registry or you may contact the registry at 1-877-311-8972 to enroll.

You and your healthcare provider should decide if you will take XELJANZ or breastfeed. You should not do both. After you stop your treatment with XELJANZ do not start breastfeeding again until 18 hours after your last dose of XELJANZ or 36 hours after your last dose of XELJANZ XR.

Please see full Prescribing Information, including BOXED WARNING and Medication Guide.

IndicationsIndaication Modal

XELJANZ/XELJANZ XR (tofacitinib) is used to treat adults who have tried TNF blockers with:

  • Moderately to severely active rheumatoid arthritis when 1 or more medicines called tumor necrosis factor (TNF) blockers have been used, and did not work well or cannot be tolerated
  • Active psoriatic arthritis when 1 or more tumor necrosis factor (TNF) blocker medicines have been used, and did not work well or cannot be tolerated
  • Moderately to severely active ulcerative colitis when 1 or more tumor necrosis factor (TNF) blocker medicines have been used, and did not work well or cannot be tolerated

XELJANZ/XELJANZ Oral Solution is used to treat patients 2 years of age and older with:

  • Active polyarticular course juvenile arthritis when 1 or more tumor necrosis factor (TNF) blocker medicines have been used, and did not work well or cannot be tolerated

It is not known if XELJANZ/XELJANZ XR is safe and effective in people with Hepatitis B or C.

XELJANZ/XELJANZ XR/XELJANZ Oral Solution is not recommended for people with severe liver problems.

It is not known if XELJANZ/XELJANZ Oral Solution is safe and effective in children for treatment other than active polyarticular course juvenile arthritis.

It is not known if XELJANZ XR is safe and effective in children.

XELJANZ/XELJANZ XR (tofacitinib) is used to treat adults who have tried TNF blockers with:

  • Moderately to severely active rheumatoid arthritis when 1 or more medicines called tumor necrosis factor (TNF) blockers have...Read More

XELJANZ/XELJANZ XR (tofacitinib) is used to treat adults who have tried TNF blockers with:

  • Moderately to severely active rheumatoid » Read More
Important Safety InformationISI Modal

The safety information below applies to all marketed formulations of XELJANZ. Specific risks associated with certain dosing are noted.

Serious infections. XELJANZ can lower the ability of your immune system to fight infections. Do not start taking XELJANZ if you have any kind of infection unless your healthcare provider tells you it is okay. Serious infections have happened in people taking XELJANZ. These serious infections include tuberculosis (TB) and infections caused by bacteria, fungi, or viruses that can spread throughout the body. Some people have died from these infections. Your healthcare provider should test you for TB before starting and during treatment with XELJANZ. You should not start taking XELJANZ if you have any kind of infection unless your healthcare professional tells you it is okay.

Before and after starting XELJANZ, tell your doctor if you have an infection or symptoms of an infection, including:

  • fever, sweating, or chills
  • cough
  • blood in phlegm
  • warm, red, or painful skin or sores on your body
  • burning when you urinate
  • urinating more often than normal
  • muscle aches
  • shortness of breath
  • weight loss
  • diarrhea or stomach pain
  • feeling very tired

Increased risk of death in people 50 years of age and older who have at least 1 heart disease (cardiovascular) risk factor and are taking XELJANZ 5 mg twice daily or XELJANZ 10 mg twice daily.

Cancer. XELJANZ may increase your risk of certain cancers by changing the way your immune system works. Lymphoma and other cancers, including skin cancers, can happen. People taking XELJANZ 5 mg twice daily or XELJANZ 10 mg twice daily have a higher risk of certain cancers including lymphoma and lung cancer, especially if you are a current or past smoker. Tell your healthcare provider if you have ever had any type of cancer.

Higher dose. People with ulcerative colitis taking the higher dose of XELJANZ (10 mg twice daily) or XELJANZ XR (22 mg one time each day) have a higher risk of serious infections, shingles, or skin cancers.

Immune system problem. Some people who have taken XELJANZ with certain other medicines to prevent kidney transplant rejection have had a problem with certain white blood cells growing out of control (Epstein Barr Virus–associated post-transplant lymphoproliferative disorder).

Increased risk of major cardiovascular events such as heart attack, stroke or death in people 50 years of age and older who have at least 1 heart disease (cardiovascular) risk factor and are taking XELJANZ 5 mg twice daily or XELJANZ 10 mg twice daily, especially if you are a current or past smoker.

Get emergency help right away if you have any symptoms of a heart attack or stroke while taking XELJANZ, including:

  • discomfort in the center of your chest that lasts for more than a few minutes, or that goes away and comes back
  • severe tightness, pain, pressure, or heaviness in your chest, throat, neck, or jaw
  • pain or discomfort in your arms, back, neck, jaw, or stomach
  • shortness of breath with or without chest discomfort
  • breaking out in a cold sweat
  • nausea or vomiting
  • feeling lightheaded
  • weakness in one part or on one side of your body
  • slurred speech

Blood clots in the lungs (pulmonary embolism, PE), veins of the legs (deep vein thrombosis, DVT), and arteries (arterial thrombosis) have happened more often in patients who are 50 years of age and older and with at least 1 heart disease (cardiovascular) risk factor taking XELJANZ 5 mg twice daily or XELJANZ 10 mg twice daily. Blood clots in the lungs have also happened in patients with ulcerative colitis. Some people have died from these blood clots.

  • Stop taking XELJANZ and tell your healthcare provider right away if you have any signs and symptoms of blood clots such as sudden shortness of breath, difficulty breathing, chest pain, swelling of a leg or arm, leg pain or tenderness, or red or discolored skin in the leg or arm.

Tears (perforation) in the stomach or intestines. Tell your healthcare provider if you have had diverticulitis (inflammation in parts of the large intestine) or ulcers in your stomach or intestines. Some people taking XELJANZ can get tears in their stomach or intestine. This happens most often in people who also take nonsteroidal anti-inflammatory drugs (NSAIDs), corticosteroids, or methotrexate. Tell your healthcare provider right away if you have fever, stomach-area pain that does not go away, and a change in your bowel habits.

Serious allergic reactions can occur. Stop using XELJANZ and call your healthcare provider right away if you have swelling of your lips, tongue, throat, or get hives.

Changes in certain lab test results. Your doctor should do blood tests to check your white and red blood cells before and while you are taking XELJANZ. Your doctor should also check certain liver tests. You should not receive XELJANZ if your lymphocyte count, neutrophil count, or red blood cell count is too low or your liver function test levels are too high. Changes in lab test results may cause your healthcare provider to stop your XELJANZ treatment for a time. Your cholesterol levels should be checked 4 to 8 weeks after you start receiving XELJANZ.

Before you use XELJANZ, tell your healthcare provider if you:

  • Are being treated for an infection, have an infection that won’t go away or keeps coming back, or think you have symptoms of an infection
  • Have TB, or have been in close contact with someone with TB, or were born in, lived in, or traveled where there is more risk for getting TB
  • Have diabetes, chronic lung disease, HIV, or a weak immune system. People with these conditions have a higher chance for infections
  • Live or have lived in certain areas (such as Ohio and Mississippi River Valleys and the Southwest) where there is an increased chance for getting certain kinds of fungal infections
  • Have or have had Hepatitis B or C
  • Are a current or past smoker
  • Have had any type of cancer
  • Have had a heart attack, other heart problems or stroke
  • Have had blood clots
  • Have liver or kidney problems
  • Have any stomach area (abdominal) pain or been diagnosed with diverticulitis or ulcers in your stomach or intestines
  • Have recently received or plan to receive a vaccine. People taking XELJANZ should not receive live vaccines but can receive non-live vaccines
  • Are pregnant, planning to become pregnant, breastfeeding, or planning to breastfeed. You should not take XELJANZ and breastfeed
  • Have had a reaction to tofacitinib or any of the ingredients
  • Are taking other medicines, including prescription and over-the-counter medicines, vitamins, and herbal supplements. Especially tell your healthcare provider if you take any of the following medicines while taking XELJANZ since this may increase your risk of infection:
    • tocilizumab (Actemra®)
    • etanercept (Enbrel®)
    • adalimumab (Humira®)
    • infliximab (Remicade®)
    • rituximab (Rituxan®)
    • abatacept (Orencia®)
    • anakinra (Kineret®)
    • certolizumab (Cimzia®)
    • golimumab (Simponi®)
    • ustekinumab (Stelara®)
    • secukinumab (Cosentyx®)
    • vedolizumab (Entyvio®)
    • sarilumab (Kevzara®)
    • azathioprine, cyclosporine, or other immunosuppressive drugs
  • Tell your healthcare provider if you are taking medicines that affect the way certain liver enzymes work. Ask your healthcare provider if you are not sure if your medicine is one of these.

What are other possible side effects of XELJANZ/XELJANZ XR?

If you are a carrier of the Hepatitis B or C virus (viruses that affect the liver), the virus may become active while you use XELJANZ. Your healthcare provider may do blood tests before starting and while using treatment with XELJANZ. Tell your healthcare provider if you have any signs of these symptoms: feel very tired, little or no appetite, clay-colored bowel movements, chills, muscle aches, skin rash, skin or eyes look yellow, vomiting, fevers, stomach discomfort, or dark urine.

Common side effects in adults with rheumatoid arthritis and psoriatic arthritis include upper respiratory tract infections (common cold, sinus infections), headache, diarrhea, nasal congestion, sore throat, runny nose (nasopharyngitis), and high blood pressure (hypertension).

Common side effects in adults with ulcerative colitis include nasal congestion, sore throat, runny nose (nasopharyngitis), increased cholesterol levels, headache, upper respiratory tract infections (common cold, sinus infections), increased muscle enzyme levels, rash, diarrhea, and shingles (herpes zoster).

Common side effects in children (2 & older) with polyarticular course juvenile arthritis include upper respiratory tract infections (common cold, sinus infections), nasal congestion, sore throat, and runny nose (nasopharyngitis), headache, fever, nausea, and vomiting.

XELJANZ & Pregnancy

XELJANZ may affect the ability of females to get pregnant. It is not known if this will change after stopping XELJANZ. It is not known if XELJANZ will harm an unborn baby.

  • Pregnancy Registry: Pfizer has a registry for pregnant women who take XELJANZ. The purpose of this registry is to check the health of the pregnant mother and her baby. If you are pregnant or become pregnant while taking XELJANZ, talk to your healthcare provider about how you can join this pregnancy registry or you may contact the registry at 1-877-311-8972 to enroll.

You and your healthcare provider should decide if you will take XELJANZ or breastfeed. You should not do both. After you stop your treatment with XELJANZ do not start breastfeeding again until 18 hours after your last dose of XELJANZ or 36 hours after your last dose of XELJANZ XR.

Please see full Prescribing Information, including BOXED WARNING and Medication Guide.

Indications

Close

XELJANZ/XELJANZ XR (tofacitinib) is used to treat adults who have tried TNF blockers with:

  • Moderately to severely active rheumatoid arthritis when 1 or more medicines called tumor necrosis factor (TNF) blockers have been used, and did not work well or cannot be tolerated
  • Active psoriatic arthritis when 1 or more tumor necrosis factor (TNF) blocker medicines have been used, and did not work well or cannot be tolerated
  • Moderately to severely active ulcerative colitis when 1 or more tumor necrosis factor (TNF) blocker medicines have been used, and did not work well or cannot be tolerated

XELJANZ/XELJANZ Oral Solution is used to treat patients 2 years of age and older with:

  • Active polyarticular course juvenile arthritis when 1 or more tumor necrosis factor (TNF) blocker medicines have been used, and did not work well or cannot be tolerated

It is not known if XELJANZ/XELJANZ XR is safe and effective in people with Hepatitis B or C.

XELJANZ/XELJANZ XR/XELJANZ Oral Solution is not recommended for people with severe liver problems.

It is not known if XELJANZ/XELJANZ Oral Solution is safe and effective in children for treatment other than active polyarticular course juvenile arthritis.

It is not known if XELJANZ XR is safe and effective in children.

Important Safety Information

Close

The safety information below applies to all marketed formulations of XELJANZ. Specific risks associated with certain dosing are noted.

Serious infections. XELJANZ can lower the ability of your immune system to fight infections. Do not start taking XELJANZ if you have any kind of infection unless your healthcare provider tells you it is okay. Serious infections have happened in people taking XELJANZ. These serious infections include tuberculosis (TB) and infections caused by bacteria, fungi, or viruses that can spread throughout the body. Some people have died from these infections. Your healthcare provider should test you for TB before starting and during treatment with XELJANZ. You should not start taking XELJANZ if you have any kind of infection unless your healthcare professional tells you it is okay.

Before and after starting XELJANZ, tell your doctor if you have an infection or symptoms of an infection, including:

  • fever, sweating, or chills
  • cough
  • blood in phlegm
  • warm, red, or painful skin or sores on your body
  • burning when you urinate
  • urinating more often than normal
  • muscle aches
  • shortness of breath
  • weight loss
  • diarrhea or stomach pain
  • feeling very tired

Increased risk of death in people 50 years of age and older who have at least 1 heart disease (cardiovascular) risk factor and are taking XELJANZ 5 mg twice daily or XELJANZ 10 mg twice daily.

Cancer. XELJANZ may increase your risk of certain cancers by changing the way your immune system works. Lymphoma and other cancers, including skin cancers, can happen. People taking XELJANZ 5 mg twice daily or XELJANZ 10 mg twice daily have a higher risk of certain cancers including lymphoma and lung cancer, especially if you are a current or past smoker. Tell your healthcare provider if you have ever had any type of cancer.

Higher dose. People with ulcerative colitis taking the higher dose of XELJANZ (10 mg twice daily) or XELJANZ XR (22 mg one time each day) have a higher risk of serious infections, shingles, or skin cancers.

Immune system problem. Some people who have taken XELJANZ with certain other medicines to prevent kidney transplant rejection have had a problem with certain white blood cells growing out of control (Epstein Barr Virus–associated post-transplant lymphoproliferative disorder).

Increased risk of major cardiovascular events such as heart attack, stroke or death in people 50 years of age and older who have at least 1 heart disease (cardiovascular) risk factor and are taking XELJANZ 5 mg twice daily or XELJANZ 10 mg twice daily, especially if you are a current or past smoker.

Get emergency help right away if you have any symptoms of a heart attack or stroke while taking XELJANZ, including:

  • discomfort in the center of your chest that lasts for more than a few minutes, or that goes away and comes back
  • severe tightness, pain, pressure, or heaviness in your chest, throat, neck, or jaw
  • pain or discomfort in your arms, back, neck, jaw, or stomach
  • shortness of breath with or without chest discomfort
  • breaking out in a cold sweat
  • nausea or vomiting
  • feeling lightheaded
  • weakness in one part or on one side of your body
  • slurred speech

Blood clots in the lungs (pulmonary embolism, PE), veins of the legs (deep vein thrombosis, DVT), and arteries (arterial thrombosis) have happened more often in patients who are 50 years of age and older and with at least 1 heart disease (cardiovascular) risk factor taking XELJANZ 5 mg twice daily or XELJANZ 10 mg twice daily. Blood clots in the lungs have also happened in patients with ulcerative colitis. Some people have died from these blood clots.

  • Stop taking XELJANZ and tell your healthcare provider right away if you have any signs and symptoms of blood clots such as sudden shortness of breath, difficulty breathing, chest pain, swelling of a leg or arm, leg pain or tenderness, or red or discolored skin in the leg or arm.

Tears (perforation) in the stomach or intestines. Tell your healthcare provider if you have had diverticulitis (inflammation in parts of the large intestine) or ulcers in your stomach or intestines. Some people taking XELJANZ can get tears in their stomach or intestine. This happens most often in people who also take nonsteroidal anti-inflammatory drugs (NSAIDs), corticosteroids, or methotrexate. Tell your healthcare provider right away if you have fever, stomach-area pain that does not go away, and a change in your bowel habits.

Serious allergic reactions can occur. Stop using XELJANZ and call your healthcare provider right away if you have swelling of your lips, tongue, throat, or get hives.

Changes in certain lab test results. Your doctor should do blood tests to check your white and red blood cells before and while you are taking XELJANZ. Your doctor should also check certain liver tests. You should not receive XELJANZ if your lymphocyte count, neutrophil count, or red blood cell count is too low or your liver function test levels are too high. Changes in lab test results may cause your healthcare provider to stop your XELJANZ treatment for a time. Your cholesterol levels should be checked 4 to 8 weeks after you start receiving XELJANZ.

Before you use XELJANZ, tell your healthcare provider if you:

  • Are being treated for an infection, have an infection that won’t go away or keeps coming back, or think you have symptoms of an infection
  • Have TB, or have been in close contact with someone with TB, or were born in, lived in, or traveled where there is more risk for getting TB
  • Have diabetes, chronic lung disease, HIV, or a weak immune system. People with these conditions have a higher chance for infections
  • Live or have lived in certain areas (such as Ohio and Mississippi River Valleys and the Southwest) where there is an increased chance for getting certain kinds of fungal infections
  • Have or have had Hepatitis B or C
  • Are a current or past smoker
  • Have had any type of cancer
  • Have had a heart attack, other heart problems or stroke
  • Have had blood clots
  • Have liver or kidney problems
  • Have any stomach area (abdominal) pain or been diagnosed with diverticulitis or ulcers in your stomach or intestines
  • Have recently received or plan to receive a vaccine. People taking XELJANZ should not receive live vaccines but can receive non-live vaccines
  • Are pregnant, planning to become pregnant, breastfeeding, or planning to breastfeed. You should not take XELJANZ and breastfeed
  • Have had a reaction to tofacitinib or any of the ingredients
  • Are taking other medicines, including prescription and over-the-counter medicines, vitamins, and herbal supplements. Especially tell your healthcare provider if you take any of the following medicines while taking XELJANZ since this may increase your risk of infection:
    • tocilizumab (Actemra®)
    • etanercept (Enbrel®)
    • adalimumab (Humira®)
    • infliximab (Remicade®)
    • rituximab (Rituxan®)
    • abatacept (Orencia®)
    • anakinra (Kineret®)
    • certolizumab (Cimzia®)
    • golimumab (Simponi®)
    • ustekinumab (Stelara®)
    • secukinumab (Cosentyx®)
    • vedolizumab (Entyvio®)
    • sarilumab (Kevzara®)
    • azathioprine, cyclosporine, or other immunosuppressive drugs
  • Tell your healthcare provider if you are taking medicines that affect the way certain liver enzymes work. Ask your healthcare provider if you are not sure if your medicine is one of these.

What are other possible side effects of XELJANZ/XELJANZ XR?

If you are a carrier of the Hepatitis B or C virus (viruses that affect the liver), the virus may become active while you use XELJANZ. Your healthcare provider may do blood tests before starting and while using treatment with XELJANZ. Tell your healthcare provider if you have any signs of these symptoms: feel very tired, little or no appetite, clay-colored bowel movements, chills, muscle aches, skin rash, skin or eyes look yellow, vomiting, fevers, stomach discomfort, or dark urine.

Common side effects in adults with rheumatoid arthritis and psoriatic arthritis include upper respiratory tract infections (common cold, sinus infections), headache, diarrhea, nasal congestion, sore throat, runny nose (nasopharyngitis), and high blood pressure (hypertension).

Common side effects in adults with ulcerative colitis include nasal congestion, sore throat, runny nose (nasopharyngitis), increased cholesterol levels, headache, upper respiratory tract infections (common cold, sinus infections), increased muscle enzyme levels, rash, diarrhea, and shingles (herpes zoster).

Common side effects in children (2 & older) with polyarticular course juvenile arthritis include upper respiratory tract infections (common cold, sinus infections), nasal congestion, sore throat, and runny nose (nasopharyngitis), headache, fever, nausea, and vomiting.

XELJANZ & Pregnancy

XELJANZ may affect the ability of females to get pregnant. It is not known if this will change after stopping XELJANZ. It is not known if XELJANZ will harm an unborn baby.

  • Pregnancy Registry: Pfizer has a registry for pregnant women who take XELJANZ. The purpose of this registry is to check the health of the pregnant mother and her baby. If you are pregnant or become pregnant while taking XELJANZ, talk to your healthcare provider about how you can join this pregnancy registry or you may contact the registry at 1-877-311-8972 to enroll.

You and your healthcare provider should decide if you will take XELJANZ or breastfeed. You should not do both. After you stop your treatment with XELJANZ do not start breastfeeding again until 18 hours after your last dose of XELJANZ or 36 hours after your last dose of XELJANZ XR.

Please see full Prescribing Information, including BOXED WARNING and Medication Guide.