Methotrexate Antibody

Methotrexate (MTX) is an antimetabolite and antifolate drug used in treatment of cancer, autoimmune diseases and as an abortifacient in the induction of medical abortions. Methotrexate inhibits the metabolism of folic acid. Methotrexate began to replace the more powerful and toxic antifolate aminopterin starting in the 1950s, and the two should not be confused.