title: The effect of urethane on histamine-induced contraction of guinea-pig tracheal smooth muscle.
mesh_terms: D000818:Animals; D002744:Chlorpheniramine / Q000494:pharmacology; D006168:Guinea Pigs; D006632:Histamine / Q000494:pharmacology*; D007700:Kinetics; D008297:Male; D009119:Muscle Contraction / Q000187:drug effects*; D009130:Muscle, Smooth / Q000187:drug effects / Q000502:physiology*; D014132:Trachea / Q000187:drug effects / Q000502:physiology; D014520:Urethane / Q000494:pharmacology*
chemical_list: D014520:Urethane; D002744:Chlorpheniramine; D006632:Histamine