Amitriptyline and perphenazine (Triptafen DA) in chronic pain.

One-hundred and twenty patients with chronic pain, who had all failed to obtain relief with traditional medical treatment, were given a standard psychotropic drug mixture consisting of amitriptyline 25 mg and perphenazine 2 mg. Of those who completed 2 months of treatment, 33.68% were pain free, while 8.3% had unacceptable side-effects. The best results were obtained in patients with postherpetic neuralgia and postoperative scar pain.