Supersensitivity to norepinephrine induced in vitro by crude Latrodectus mactans venom in the rabbit ear artery.
D000818:Animals; D001740:Black Widow Spider; D003042:Cocaine / Q000494:pharmacology; D004357:Drug Synergism; D006632:Histamine / Q000494:pharmacology; D066298:In Vitro Techniques; D008729:Methoxamine / Q000494:pharmacology; D009119:Muscle Contraction / Q000187:drug effects; D009130:Muscle, Smooth / Q000187:drug effects*; D009638:Norepinephrine / Q000494:pharmacology*; D011817:Rabbits; D012110:Reserpine / Q000494:pharmacology; D013112:Spiders; D014688:Venoms / Q000494:pharmacology*
D014688:Venoms; D006632:Histamine; D012110:Reserpine; D008729:Methoxamine; D003042:Cocaine; D009638:Norepinephrine