Hyperpigmentation from Hydroxychloroquine. From 316 HCQ pts, 26% got hyperpigmentation; delayed onset of 12 mos (6–30mos) after median cum. dose of 108 g. Seen on face (602%), Legs (36%) & hands (20%). Daily sun exposure decrease in the incidence (P=0.02) https://t.co/365qcuIpWE https://t.co/cHO16kDtK3