title: Effects of medroxyprogesterone acetate on sleep of healthy young male adults.
abstract: The effects of a single 100 mg dose of medroxyprogesterone acetate (MPA) on human sleep were investigated using healthy young male adults. After a baseline night recording, two consecutive MPA nights and the following two withdrawal nights were recorded. The total sleep time was reduced after the 2nd MPA night and the decrease was significant on the 1st withdrawal night. The time of intrasleep awakening increased after the 2nd MPA night. Stage 1 sleep increased significantly on the 2nd MPA and 1st withdrawal nights. Stage 4 sleep decreased and the sleep latency gradually increased after the MPA administration. REM sleep reduced slightly on the 1st withdrawal night. These results indicate that MPA has a mild arousal action on human sleep and that the action may be pronounced a few days after administration of MPA.
mesh_terms: D000328:Adult; D006801:Humans; D008297:Male; D008525:Medroxyprogesterone / Q000031:analogs & derivatives* / Q000494:pharmacology; D017258:Medroxyprogesterone Acetate; D011930:Reaction Time / Q000187:drug effects; D012737:Sex Factors; D012890:Sleep / Q000187:drug effects*; D012894:Sleep Stages / Q000187:drug effects
chemical_list: D017258:Medroxyprogesterone Acetate; D008525:Medroxyprogesterone