title: Relationship between excitability block and negative inotropic actions of antiarrhythmic drugs.
mesh_terms: D000200:Action Potentials / Q000187:drug effects; D000818:Animals; D000889:Anti-Arrhythmia Agents / Q000494:pharmacology*; D006168:Guinea Pigs; D066298:In Vitro Techniques; D007473:Ion Channels / Q000187:drug effects; D008801:Mexiletine / Q000494:pharmacology; D009200:Myocardial Contraction / Q000187:drug effects*; D012964:Sodium / Q000378:metabolism
chemical_list: D000889:Anti-Arrhythmia Agents; D007473:Ion Channels; D008801:Mexiletine; D012964:Sodium