SPL Set ID: 2b61822e-b488-5eaf-e063-6394a90a2dcd

Methotrexate is dihydrofolate reductase inhibitor with the chemical name of L-Glutamic acid, N-[4-[[(2,4-diamino-6-pteridinyl)methyl]methylamino]benzoyl]-,disodium salt (9CI). The molecular formula is C 20 H 22 N 8 O 5 Na 2 and the molecular weight is 498.40 g/mol. The structural formula is: Methotrexate tablets, USP for oral use is available in bottles of 36 and 100 tablets. Each methotrexate tablet contains 2.5 mg methotrexate equivalent to 2.74 mg methotrexate disodium and the following inactive ingredients: lactose monohydrate, magnesium stearate and pregelatinized starch (maize). Chemical Structure