Protriptyline is a tricyclic antidepressant (TCA), specifically a secondary amine, indicated for the treatment of depression and ADHD. Unique among the TCAs, protriptyline tends to be energizing instead of sedating, and is sometimes used for narcolepsy to achieve a wakefulness-promoting effect. Protriptyline is used primarily to treat depression and to treat the combination of symptoms of anxiety and depression.Like most antidepressants of this chemical and pharmacological class, protriptyline has also been used in limited numbers of patients to treat panic disorder, obsessive-compulsive disorder, attention-deficit/hyperactivity disorder, enuresis, eating disorders such as bulimia nervosa, cocaine dependency, and the depressive phase of bipolar disorder (manic-depressive) disorder. It has also been used to support smoking cessation programs.