title: The effect of a calcium-antagonistic drug, nifedipine, on the rat atrial action potential at different calcium levels.
mesh_terms: D000200:Action Potentials / Q000187:drug effects*; D000818:Animals; D001285:Atropine / Q000494:pharmacology; D002118:Calcium / Q000037:antagonists & inhibitors* / Q000494:pharmacology; D004347:Drug Interactions; D004558:Electric Stimulation; D005260:Female; D066298:In Vitro Techniques; D008564:Membrane Potentials / Q000187:drug effects; D009543:Nifedipine / Q000494:pharmacology*; D011725:Pyridines / Q000494:pharmacology*; D051381:Rats
chemical_list: D011725:Pyridines; D001285:Atropine; D009543:Nifedipine; D002118:Calcium