SPL Set ID: b585f621-f6c9-4735-ab61-bd1b401f3df0
1 drug(s) with this SPL Set ID
Methotrexate (formerly Amethopterin) is an antimetabolite used in the treatment of certain neoplastic diseases, severe psoriasis, and adult rheumatoid arthritis. Chemically, methotrexate is N -[4-[[(2,4-diamino-6-pteridinyl) methyl] methylamino]benzoyl]-L-glutamic acid. The structural formula is: C 20 H 22 N 8 O 5 M.W. 454.45 Methotrexate Injection, USP is sterile and non-pyrogenic and may be given by the intramuscular, intravenous or intra-arterial route (see DOSAGE AND ADMINISTRATION ). The preserved formulation contains benzyl alcohol; do not use for intrathecal or high-dose therapy. Methotrexate Injection, USP, Isotonic Liquid, Contains Preservative is available in 10 mL (25 mg/mL) vials. Each mL contains methotrexate sodium equivalent to 25 mg methotrexate, 0.9% w/v of benzyl alcohol as a preservative, and the following inactive ingredients: sodium chloride 0.26% w/v and water for injection, q.s. ad 100% v. Sodium hydroxide and/or hydrochloric acid may be added to adjust the pH to approximately 8.5. structure