NCI Dictionary of Cancer Terms

The NCI Dictionary of Cancer Terms features 8,545 terms related to cancer and medicine.

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A drug used to treat many types of cancer. It is also used to treat rheumatoid arthritis and severe psoriasis (a type of skin condition). Amethopterin stops cells from using folic acid to make DNA and may kill cancer cells. It may also lower the body’s immune response. Amethopterin is a type of antimetabolite and a type of antifolate. Also called methotrexate, MTX, Rheumatrex, and Trexall.