methotrexate, Rheumatrex, Trexall

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GENERIC NAME: methotrexate

BRAND NAMES: Rheumatrex, Trexall

DRUG CLASS AND MECHANISM: Methotrexate is classified as an antimetabolite drug which means it is capable of blocking the metabolism of cells. (Metabolism consists of the production and destruction of important components of the cell as well as the production of energy for use by the cell.) As a result of this effect, it has been found helpful in treating certain diseases associated with abnormally rapid cell growth, such as cancer of the breast and psoriasis. Recently, methotrexate has been shown to be effective in inducing miscarriage, for example in patients with ectopic pregnancy. This effect of methotrexate is attributed to its action of killing rapidly growing cells such as those of the placenta. It also has been found very helpful in treating rheumatoid arthritis, although its mechanism of action in this illness is not known. It seems to work, in part, by altering immunity which may play a role in causing rheumatoid arthritis. The FDA approved methotrexate in December 1953.

PRESCRIPTION: Yes

Medically Reviewed by a Doctor on 3/28/2013



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