title: Myasthenia gravis unmasked by antiarrhythmic agents.
mesh_terms: D000368:Aged; D000818:Animals; D000889:Anti-Arrhythmia Agents / Q000009:adverse effects*; D001145:Arrhythmias, Cardiac / Q000188:drug therapy; D006801:Humans; D008012:Lidocaine / Q000008:administration & dosage; D008297:Male; D009157:Myasthenia Gravis / Q000139:chemically induced*; D009467:Neuromuscular Depolarizing Agents / Q000009:adverse effects; D011343:Procaine / Q000009:adverse effects / Q000627:therapeutic use; D011802:Quinidine / Q000009:adverse effects / Q000627:therapeutic use
chemical_list: D000889:Anti-Arrhythmia Agents; D009467:Neuromuscular Depolarizing Agents; D011343:Procaine; D008012:Lidocaine; D011802:Quinidine