The effect of tetrodotoxin on the transmembrane potentials of the heart cells.
D000200:Action Potentials / Q000187:drug effects*; D000818:Animals; D002118:Calcium / Q000378:metabolism; D003864:Depression, Chemical; D004285:Dogs; D004305:Dose-Response Relationship, Drug; D005260:Female; D006329:Heart Conduction System / Q000187:drug effects*; D066298:In Vitro Techniques; D008297:Male; D009206:Myocardium / Q000166:cytology* / Q000378:metabolism; D013779:Tetrodotoxin / Q000008:administration & dosage / Q000494:pharmacology*
D013779:Tetrodotoxin; D002118:Calcium