Drug therapy: flecainide and tocainide.
D000368:Aged; D000889:Anti-Arrhythmia Agents / Q000008:administration & dosage* / Q000097:blood; D005424:Flecainide / Q000008:administration & dosage* / Q000097:blood; D006801:Humans; D008012:Lidocaine / Q000008:administration & dosage / Q000031:analogs & derivatives* / Q000097:blood; D016677:Tocainide
D000889:Anti-Arrhythmia Agents; D016677:Tocainide; D008012:Lidocaine; D005424:Flecainide