As an investigator and contributing author of studies on finasteride and male pattern hair loss,1 I am writing in response to the commentary by Frankel2 published in the March 1999 issue of the ARCHIVES. In his commentary, Frankel raises concerns about the dosage, long-term adverse effects, and costs of Propecia (finasteride, 1 mg). It is appropriate to raise and publish opinions about controversial issues. Commentaries, however, are not held to the same rigorous scrutiny and high scientific standards as peer-reviewed articles.
Roberts JL. Finasteride in a 1-mg Dose Is Safe and Effective. Arch Dermatol. 1999;135(8):990. doi:10-1001/pubs.Arch Dermatol.-ISSN-0003-987x-135-8-dlt0899