In which of the following conditions is amitriptyline NOT typically prescribed?

Amitriptyline is a tricyclic antidepressant often used for various indications; however, it is not typically prescribed for cardiac arrhythmias. The use of amitriptyline is predominantly seen in chronic pain syndromes, anxiety disorders, and enuresis in children due to its analgesic properties and its ability to affect neurotransmitters involved in mood and anxiety regulation.

When it comes to cardiac arrhythmias, tricyclic antidepressants can pose significant risks. Amitriptyline has anticholinergic properties and can prolong the QT interval, which can exacerbate existing heart conditions or lead to new arrhythmias. Because of these potential adverse cardiovascular effects, its prescription would be contraindicated in patients with known cardiac issues, including arrhythmias. Therefore, while amitriptyline has valuable therapeutic uses, its role in managing cardiac arrhythmias is not favorable and could be harmful.