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Methotrexate PATIENT FACT SHEET (Rheumatrex, Trexall, Otrexup, Rasuvo)

Methotrexate is one of the most effective and combination with other medications to treat arthritis. commonly used medications in the treatment It is known as a disease-modifying anti-rheumatic drug of and other forms of (DMARD), because it not only decreases the pain and inflammatory arthritis, and also may be used to swelling of arthritis, but it also can decrease damage treat , inflammatory myositis, , and to joints and long-term disability. WHAT IS IT? some forms of childhood arthritis. It is often used in

Methotrexate comes either as pills or as a subcutaneous increases the risk for damage while taking injection. Methotrexate is usually taken as a single dose methotrexate, so should be avoided. Regular once per week, although occasionally the dose is split into laboratory monitoring is required to monitor blood counts two doses, taken once per week, to improve absorption and your liver while taking methotrexate. Improvements in or avoid side effects. Your doctor also may prescribe a arthritis and other conditions usually are first seen in 3 to folic acid (or ) vitamin supplement to decrease the 6 weeks. The full benefit of this drug may not be seen until HOW TO chance of side effects. Methotrexate should not be taken if after 12 weeks of treatment. TAKE IT kidney or liver function is not normal. Alcohol significantly

Methotrexate can lower your ’s ability Methotrexate may cause (scarring) of the liver, to fight infections. If you develop symptoms of an but this side effect is rare and most likely to occur in infection while using this medication, you should stop it patients who already have liver problems or are using and contact your doctor. The most common side effects alcohol or taking other drugs that are toxic to the are gastrointestinal upset (indigestion, nausea, vomiting, liver. Lung problems (persistent cough or unexplained etc.) and elevations of . shortness of breath) can occur rarely when taking methotrexate. Slow hair loss is seen in some patients, About 1 to 3% of patients develop mouth sores (called but hair grows back when the person stops taking this ), rash, diarrhea and abnormalities in blood SIDE medication. This can often be managed by taking folic counts. Some side effects do not cause symptoms, so it acid. It is important to remember that most patients do EFFECTS is important to have routine blood tests performed every not experience side effects, and that, for those who do, 8 to 12 weeks. many of the minor side effects will improve with time.

You should contact your doctor if you develop pregnant. Even though methotrexate should not be symptoms of an infection, such as a fever or cough, taken during , it does not reduce a woman’s or if you think you are having any side effects. chance of becoming pregnant in the future. Men taking Be sure to let your doctor know if you are pregnant, methotrexate should talk to their physician prior to planning to get pregnant, or if you are . attempts to conceive. If you are planning on having Methotrexate treatment should be discontinued for surgery or will be receiving or radiation TELL YOUR at least three months before attempting to become therapy, talk to your doctor first. DOCTOR

Updated March 2019 by Christopher Mecoli, MD and reviewed by the American College of © 2019 American College of Rheumatology Committee on Communications and Marketing. This patient fact sheet is provided for general education only. Individuals should consult a qualified health care provider for professional medical advice, diagnosis and treatment of a medical or health condition.

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