Differences in risk of tetracycline-associated hyperpigmentation between racial and ethnic groups in patients with acne vulgaris: A national US retrospective study.

Competing Interests: Conflicts of interest Dr Mostaghimi has received consulting fees from Pfizer, hims, Digital Diagnostics, Concert, Lilly, Abbvie, Equillium, Boehringer Ingelheim; equity: hims, Acom, Seebe; licensing/royalties: Pfizer, Concert, Lilly; medical advisory board: hims, digital diagnostics; clinical trials: Lilly, Concert; and editorial: Associate editor, JAMA Dermatology. Dr Semenov is an advisory board member/consultant and has received honoraria from Incyte Corporation, Castle Biosciences, Galderma, and Sanofi outside of the submitted work. Dr Theodosakis, authors Young, Pagan, Yoon, Getachaw, Leung, and Nguyen have no conflicts of interest to declare.