When is methotrexate used?
Methotrexate may be used to treat rheumatoid arthritis, juvenile idiopathic arthritis, uveitis, psoriasis and other rheumatic diseases. Low-dose methotrexate has been widely used since the 1980s for the safe and effective treatment of arthritis. Methotrexate may be considered chemotherapy as it is also used to treat cancer, although using doses 100 times that which is used to treat arthritis (e.g. 1,000-5,000mg intravenous infusion for cancer, rather than the lower doses used for arthritis 10-25mg).