GW Professor’s Research Contributes to Warning Added to Label of the Drug, Propecia

GW Professor, Dr. Michael Irwig, author of a 2011 study published in the Journal of Sexual Medicine, titled, “Persistent Sexual Side Effects of Finasteride for Male Pattern Hair Loss,” is available to speak with media about the recent changes required by the FDA to include a warning about possible persistent sexual side effects on packaging of the drug, Propecia. Dr. Irwig continues to study men with long-term effects of this drug.

B-Roll of Dr. Irwig talking about the 2011 study is on YouTube.

Dr. Michael Irwig

Michael S. Irwig, M.D., F.A.C.E., is an assistant professor of Medicine in the GW School of Medicine and Health Sciences and director of the Center for Andrology at the Medical Faculty Associates. Dr. Irwig is a general endocrinologist with a particular interest and expertise in androgens.

He is a well-published author with his research appearing in multiple journals including the Journal of Sexual Medicine, Diabetic Medicine, and the Journal of Clinical Endocrinology and Metabolism.  His research has been featured in many national and international mainstream publications and broadcast outlets including:  CBS News,, CNN, Men’s Health Magazine, Men’s Journal and The Philadelphia Inquirer.

Dr. Irwig lectures at medical schools and medical centers across the country on the topics of male hypogonadism, vitamin D deficiency, use and abuse of anabolic steroids, and the endocrine care of transsexuals. He also serves as a reviewer for many academic medical journals.

Dr. Irwig is the Treasurer and a board member of the mid-Atlantic chapter of the American Association of Clinical Endocrinologists, as well as a member of the Endocrine Society.

Dr. Irwig received his M.D. degree from Cornell University and completed his residency in internal medicine at the University of Virginia. He was a senior fellow in endocrinology, metabolism, and nutrition at the University of Washington.

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