title: Restoration effects of histamine on action potential in potassium-depolarized guinea-pig papillary muscle.
mesh_terms: D000200:Action Potentials / Q000187:drug effects*; D000818:Animals; D002118:Calcium / Q000502:physiology; D006168:Guinea Pigs; D006632:Histamine / Q000494:pharmacology*; D066298:In Vitro Techniques; D008345:Manganese / Q000494:pharmacology; D008839:Microelectrodes; D009132:Muscles / Q000502:physiology; D009467:Neuromuscular Depolarizing Agents / Q000494:pharmacology; D010210:Papillary Muscles / Q000187:drug effects* / Q000502:physiology; D012964:Sodium / Q000494:pharmacology; D013779:Tetrodotoxin / Q000494:pharmacology
chemical_list: D009467:Neuromuscular Depolarizing Agents; D008345:Manganese; D013779:Tetrodotoxin; D006632:Histamine; D012964:Sodium; D002118:Calcium