Rheumatoid arthritis (RA) is a chronic condition that occurs when the immune system attacks healthy joints. Doctors may treat the resulting inflammation and pain with methotrexate, a drug that ...

Methotrexate injection, a treatment for certain autoimmune diseases and cancers, can lead to various side effects. These range from common, mild reactions such as headache and nausea to serious, ...

Methotrexate is not suitable for use during pregnancy, due to a risk of birth abnormalities. Both partners should avoid methotrexate when planning to become pregnant and during pregnancy. Methotrexate ...