The Kefauver-Harris Amendment to the Food, Drug and Cosmetic Act, enacted by Congress in 1962, required pharmaceutical manufacturers to provide proof of prescription drug effectiveness as well as safety and to obtain preapproval of their marketing plans. Over the next 35 years, manufacturers promoted their products largely to physicians through ads in medical journals and inoffice "detailing." Print advertising directed toward patients was unusual and broadcast advertising was rare, owing to the US Food and Drug Administration's (FDA's) insistence that ads on television and radio include a brief summary of adverse reactions and contraindications-a requirement that tended to produce long, stultifying, and expensive commercials. However, 20 years ago in 1997, the FDA ruled that "adequate provision" of information about drug risks and benefits could be made by referring consumers to a toll-free telephone number, a simultaneously occurring print ad, or a website. With barriers vastly diminished, this new FDA rule unleashed a torrent of television ads. 1 These ads promoted treatments for a wide array of conditions, from depression to toenail fungus, high cholesterol, and-beginning in the mid-2000s-male hypogonadism (otherwise known as testosterone deficiency or "low T").Ads promoting androgen replacement therapy for testosterone deficiency emphasized the high prevalence of subnormal testosterone values in men older than 45 years and implicitly promised better quality of life and improved performance "in the boardroom and the bedroom." Until 2012, direct-to-consumer advertising (DTCA) of androgen replacement therapy emphasized nonbranded "disease awareness" spots urging middle-aged men to consult their physicians for common symptoms (eg, fatigue) that might be the result of "low T." After that time, ads for branded products, such as for Androgel and Axiron, became more common.The industry's campaign was startlingly effective. Physicians were ill prepared to respond, as practice guidelines at the time were ambiguous. 2 Between 2000 and 2011, testosterone use increased at least 3-fold in the United States. 3,4 Many men who were treated with these products did not undergo appropriate testing for testosterone deficiency or meet diagnostic criteria for hypogonadism. At first, the surge in use of androgen replacement therapy did not attract a great deal of attention from the medical community. Then, in 2013 and 2014, 2 scientific articles suggested a potential association of androgen replacement therapy with myocardial infarction and stroke. 5,6 Spurred in part by new FDA labeling requirements, television ads for androgen replace-19. Niederdeppe J, Byrne S, Avery RJ, Cantor J. Direct-to-consumer television advertising exposure, diagnosis with high cholesterol, and statin use.