Possible diphenylhydantoin-induced arrhythmia in hypothyroidism.
D007037:Hypothyroidism / Q000150:complications*; D010672:Phenytoin / Q000009:adverse effects*; D012214:Rheumatic Heart Disease / Q000150:complications*; D013610:Tachycardia / Q000209:etiology*
D010672:Phenytoin