Methotrexate is used as s cell cycle arresting agent that inhibits DHFR. It is used in treatment of cancer, autoimmune diseases, ectopic pregnancy, and for the induction of medical abortions. It acts by inhibiting the metabolism of folic acid. Methotrexate is one of the most effective and widely used medications for treating rheumatoid arthritis (RA) and other inflammatory types of arthritis. It is used as an anticancer drug.
Allegra et al. Evidence for direct inhibition of de novo protein synthesis in human MCF-7 breast cells as a principal mode of metabolic inhibition by methotrexate. J.Biol.Chem. 1987, 262, (28), 13520-6.
Cronstein, B. N. Low-Dose Methotrexate: A Mainstay in the Treatment of Rheumatoid Arthritis. Pharmacological Reviews . 2005, 57, (2), 163-172.
Hazard Statements: H301-H315-H319-H360
Toxic if swallowed. Causes skin irritation. Causes serious eye irritation. May damage fertility or the unborn child.
Precautionary Statements: P201-P280-P301+P310a-P305+P351+P338-P405-P501a
Obtain special instructions before use. Wear protective gloves/protective clothing/eye protection/face protection. IF SWALLOWED: Immediately call a POISON CENTER/doctor IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.