Our Methotrexate 2.5 mg Tablets belong to a class of medicines called antimetabolite. This medication is extensively used in the treatment of severe psoriasis, certain neoplastic diseases and adult rheumatoid arthritis. Methotrexate works by interfering with the growth of certain cells of the body that reproduce quickly. These cells include bone marrow cells, cancer cells and skin cells. This medicine is specially formulated for the treatment of certain types of cancer of skin, breast, head and neck, or lung.