Folate deficiency medical therapy
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Medical Therapy
Pharmacotherapy
Folic acid supplements are normally given with sulfasalazine. The purpose of methotrexate is to inhibit dihydrofolate reductase and thereby reduce the rate de novo purine and pyrimidine synthesis and cell division. It may therefore be counter-productive to take a folic acid supplement with methotrexate. Although the folic acid inhibition of sulfasalazine is normally seen as a side effect, it is possible that it is a part of the therapeutic effect of the drug, given that methotrexate, a frank folic acid inhibitor, is often given if sulfasalazine fails. It would therefore be wise to consult with a physician before taking a folic acid supplement along with sulfasalazine or methotrexate.