title: The effects of the "calcium-antagonist" verapamil on muscle action potentials in the frog and crayfish and on neuromuscular transmission in the crayfish.
mesh_terms: D000200:Action Potentials / Q000187:drug effects*; D000818:Animals; D001001:Anura; D003400:Astacoidea / Q000187:drug effects / Q000502:physiology; D002118:Calcium / Q000378:metabolism; D004553:Electric Conductivity; D009132:Muscles / Q000187:drug effects / Q000502:physiology*; D009469:Neuromuscular Junction / Q000187:drug effects / Q000502:physiology*; D011188:Potassium / Q000378:metabolism; D011894:Rana pipiens; D012964:Sodium / Q000378:metabolism; D013045:Species Specificity; D014700:Verapamil / Q000494:pharmacology*
chemical_list: D012964:Sodium; D014700:Verapamil; D011188:Potassium; D002118:Calcium