Amitriptyline hydrochloride (Elavil^®), a type of tricyclic antidepressant, is commonly used to treat depression. This prescription medication may also help to treat several other conditions, including ADHD, fibromyalgia, bedwetting, and bulimia. Amitriptyline is not suitable for everyone. A few of the conditions you should let your healthcare provider know about before taking this medication include heart problems, epilepsy, and a history of suicidal thoughts or behaviors.