. . . "Some medications used to treat rheumatoid arthritis are also used to treat psoriatic arthritis, including:Nonsteroidal anti-inflammatory medications to relieve symptomsVitamins and minerals, such as calcium and vitamin D, to slow bone deformationImmunosuppressive medications, such as methotrexate to suppress inflammation if NSAIDs are not effective Biologic medications, such as the drugs Enbrel (e" . .