Answer
QT interval prolongation and cardiac arrhythmias have been reported with amitriptyline hydrochloride; arrhythmias are likely at high doses and may also occur at normal doses in patients with pre-existing heart disease.
Sources for this answer
- Amitriptyline Hydrochloride 50mg/5ml Oral SolutionRosemont Pharmaceuticals Limited · emc · SmPC §4.4 Special warnings and precautions for use · Version 18Document updated
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