RT Journal Article SR Electronic T1 Marihuana smoking suppresses luteinizing hormone in women. JF Journal of Pharmacology and Experimental Therapeutics JO J Pharmacol Exp Ther FD American Society for Pharmacology and Experimental Therapeutics SP 862 OP 866 VO 237 IS 3 A1 J H Mendelson A1 N K Mello A1 J Ellingboe A1 A S Skupny A1 B W Lex A1 M Griffin YR 1986 UL http://jpet.aspetjournals.org/content/237/3/862.abstract AB Smoking a single 1-g marihuana cigarette containing 1.8% delta 9-tetrahydrocannabinol induced a 30% suppression of plasma luteinizing hormone levels (P less than .02) in women during the luteal phase of the menstrual cycle. After marihuana placebo cigarette smoking, no luteinizing hormone suppression was observed in the same women under double-blind conditions. Marihuana may have adverse effects upon reproductive function during the luteal phase of the menstrual cycle as a consequence of gonadotropin inhibition.