Methotrexate Sodium Injection 50 mg Per 2 mL (25 mg/mL) Multi-Dose Vials 2 mL x 5/Pack (RX)Methotrexate Sodium Injection is used to treat certain types of cancer, such as breast cancer, lung cancer, and leukemia, as well as autoimmune diseases like rheumatoid arthritis and severe psoriasis. It functions as an antimetabolite by interfering with DNA synthesis, thus inhibiting the growth of cancer cells and suppressing immune system activity. Administered intravenously or intramuscularly, Methotrexate requires careful dosing and monitoring to