title: Papaverine decreases the efflux of 42K in guinea-pig atrial heart muscle.
mesh_terms: D000200:Action Potentials / Q000187:drug effects; D000818:Animals; D005260:Female; D006168:Guinea Pigs; D066298:In Vitro Techniques; D008297:Male; D009200:Myocardial Contraction / Q000187:drug effects; D009206:Myocardium / Q000378:metabolism*; D010208:Papaverine / Q000494:pharmacology*; D011188:Potassium / Q000378:metabolism*; D011197:Potassium Radioisotopes; D013997:Time Factors
chemical_list: D011197:Potassium Radioisotopes; D010208:Papaverine; D011188:Potassium