USES: Methotrexate is used to treat certain types of cancer or to control severe psoriasis or rheumatoid arthritis. This medication works by interfering with cell growth and by suppressing the immune system. Early treatment of rheumatoid arthritis with more aggressive therapy such as methotrexate helps to reduce further joint damage and to preserve joint function.

OTHER USES: This medication has also been used to treat other disorders such as lupus and psoriatic arthritis.

HOW TO USE: This is a potent medication. The dose and how often you take this drug is based on your medical condition and response to therapy. There are many different dosing schedules for this medicine (especially for cancer treatment). Therefore, it is very important that you follow your doctor's instructions carefully. Take it by mouth exactly as directed. For managing psoriasis or rheumatoid arthritis, take this medication exactly as directed, usually once a week. It may take up to several months of continued use before the full benefit of this drug takes effect. Do not increase your dose or take this medication more often without your doctor's approval. Your condition will not improve any faster and the risk of serious side effects may be increased. Unless your doctor instructs you otherwise, drink plenty of fluids while taking this medication. This helps your kidneys to remove the drug from your body and minimize some of the side effects. This medication may come with a Patient Information Leaflet. Read it carefully. Ask your doctor or pharmacist any questions that you may have about this medicine.

SIDE EFFECTS: See also Warning section. Nausea, vomiting, stomach pain, drowsiness or dizziness may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly. Tell your doctor immediately if any of these serious side effects occur: mouth sores, diarrhea, fever, fatigue, persistent sore throat, unusual bleeding or bruising, black stools, skin rash, enlarged glands/lymph nodes, dark urine, bone pain, unusual pain and discoloration of the skin. Tell your doctor immediately if any of these unlikely but serious side effects occur: yellowing eyes/skin, change in the amount of urine, chest pain, dry cough, trouble breathing, calf pain/swelling, vision changes, irregular heartbeat, muscle weakness, mental/mood changes, seizures. Temporary hair loss may occur. Normal hair growth should return after treatment has ended. A serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction include: rash, itching, swelling, severe dizziness, trouble breathing. If you notice other effects not listed above, contact your doctor or pharmacist.