title: Dysarthria and visual hallucinations due to flecainide toxicity.
abstract: A 65 year old man with recurrent ventricular tachyarrhythmias post myocardial infarction developed dysarthria and visual hallucinations due to flecainide toxicity. A readily available assay is required for estimating serum flecainide levels in patients with diminished renal or hepatic function or failed arrhythmia suppression.
mesh_terms: D000368:Aged; D001145:Arrhythmias, Cardiac / Q000188:drug therapy; D004401:Dysarthria / Q000139:chemically induced*; D005424:Flecainide / Q000009:adverse effects* / Q000627:therapeutic use; D006212:Hallucinations / Q000139:chemically induced*; D006801:Humans; D008297:Male; D013064:Speech Disorders / Q000139:chemically induced*
chemical_list: D005424:Flecainide