Three FDA Alerts: Transdermal Patches, Weight Loss Products, And ZonisamideAschenbrenner, Diane S. MS, APRN, BCAJN The American Journal of Nursing: July 2009 - Volume 109 - Issue 7 - p 46-47 doi: 10.1097/01.NAJ.0000357170.48389.a3 Drug Watch Abstract Author Information Transdermal patches with metal in the backing pose the risk of burns in patients undergoing MRI. Over-the-counter weight loss products may contain active drugs not listed on the Labeling. The antiepilepsy drug zonisamide can induce metabolic acidosis. Serum bicarbonate should be measured at baseline and throughout therapy. Diane S. Aschenbrenner is the course coordinator for undergraduate pharmacology at Johns Hopkins University School of Nursing in Baltimore, MD. She also coordinates Drug Watch: firstname.lastname@example.org. © 2009 Lippincott Williams & Wilkins, Inc.