Updated October 2025
This information sheet is from the Australian Rheumatology Association to help you understand the medicine prescribed for you. It includes important information about:
Please read it carefully and talk to your doctor. This information sheet is not intended to replace the product information or discussion with your rheumatologist.
Tofacitinib (brand name: Xeljanz®) is a tablet that belongs to a class of medicines called Janus Kinase (JAK) inhibitors. JAK inhibitors work by blocking signals in the body that cause inflammation. In rheumatoid arthritis and other inflammatory conditions, reducing these signals helps reduce inflammation and pain, and helps protect the joints from further damage.
Tofacitinib should only be used if no suitable treatment alternatives are available in patients:
Tofacitinib is taken by mouth in tablet form. The tablet should be swallowed whole do not crush, break or chew the tablet.
Take this medicine with a full glass of water at the same time each day. It can be taken with or without food.
If you miss a dose: Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose.
The usual dose for adults with rheumatoid arthritis and other inflammatory conditions is 5mg taken twice daily.
This medicine may be used alone or with other arthritis medicines including:
There may be some instances where these medicines may not be right for you, always check with your doctor prior to taking any of these medicines.
Tofacitinib cannot be used with other biologic DMARDs or targeted synthetic DMARDs (such as baricitinib, upadacitinib, etanercept and adalimumab).
You might experience side effects with your treatment. Tell your doctor if you notice side effects that you think are caused by this medicine. Many side effects disappear when tofacitinib treatment is stopped.
Most common side effects
Less common or rare side effects
Infections If you have an active infection of any kind, treatment with tofacitinib will not be started until the infection is treated successfully. If you have a serious infection for example requiring antibiotics or antivirals, generally you should pause tofacitinib until you are getting better.
Cardiovascular risk People with rheumatoid arthritis and other inflammatory conditions have an increased risk of cardiovascular disorders. Recent reports have associated this medicine and other JAK inhibitors with an increased risk of heart related events. Ensure your doctor is aware of any pre-existing risk factors (e.g. high blood pressure, high cholesterol, smoking status). Use with other medications Some medicines may not be used with tofacitinib as it may change their effectiveness and how well tofacitinib may work for you. Some medicines that may change how tofacitinib works include:
There may be other medicines that can affect tofacitinib. You should inform your doctor and pharmacist of all of the medicines you are taking or plan to take. This includes over the counter or herbal/naturopathic medicines to see if these affect tofacitinib. Use with alcohol You may drink alcohol while taking tofacitinib. However, if you are also taking methotrexate you should be cautious about how much alcohol you drink.
Vaccines If you are taking tofacitinib you should not be immunised with ‘live’ vaccines such as:
Talk with your rheumatologist before receiving any vaccines.
Pneumococcal, Shingrix - InactivatedVaccine (not live) vaccines and the yearly seasonal flu vaccinations are encouraged.
For more information on vaccination including the COVID-19 vaccination click here.
Surgery If you require surgery for any reason, treatment with tofacitinib should be stopped one week before surgery. It will be restarted again after the operation at a time agreed by your surgeon and rheumatologist.
Use in pregnancy and when breastfeeding