Methotrexate is a Disease Modifying Anti-Rheumatic Drug (DMARD) that is commonly used in the treatment of rheumatoid arthritis, psoriatic arthritis, and other forms of arthritis.

Methotrexate is commonly used in the treatment of various forms of arthritis, including rheumatoid arthritis. It can be taken in oral tablet form or administered as a subcutaneous injection.

It is also used as a treatment for certain types of cancer, including leukemia, lymphoma, and solid tumors.