title: Inhibition of spontaneous contractions of the rat pregnant uterus by progesterone metabolites.
mesh_terms: D000818:Animals; D005260:Female; D066298:In Vitro Techniques; D009126:Muscle Relaxation / Q000187:drug effects; D011247:Pregnancy; D011270:Pregnancy, Animal / Q000187:drug effects*; D011374:Progesterone / Q000494:pharmacology*; D051381:Rats; D013997:Time Factors; D014590:Uterine Contraction / Q000187:drug effects*
chemical_list: D011374:Progesterone