The effect of calcium in removing the blocking action of bretylium and guanethidine.
D000109:Acetylcholine / Q000494:pharmacology; D000818:Animals; D001949:Bretylium Compounds / Q000037:antagonists & inhibitors / Q000494:pharmacology*; D002118:Calcium / Q000494:pharmacology*; D006145:Guanethidine / Q000037:antagonists & inhibitors / Q000494:pharmacology*; D006325:Heart Atria / Q000187:drug effects; D007082:Ileum / Q000187:drug effects; D066298:In Vitro Techniques; D009538:Nicotine / Q000494:pharmacology; D009638:Norepinephrine / Q000378:metabolism; D011343:Procaine / Q000494:pharmacology; D011817:Rabbits
D001949:Bretylium Compounds; D011343:Procaine; D009538:Nicotine; D000109:Acetylcholine; D002118:Calcium; D009638:Norepinephrine; D006145:Guanethidine