The aim of this study is: Evaluation of therapeutic effect of prednisolone + dapson with prednisolone+imurane in pemphigus vulgaris treatment. This study is a randomized clinical trial. Population of patients with pemphigus vulgaris visit in, a dermatology clinic of Sina hospital or Sheikh Alrayys clinic, Tabriz, Iran. Inclusion criterion: patients with pemphigus vulgaris, that their disease was detected by the clinical or pathological evidence of initial tests with pemphigus vulgaris. Exclusion criterion: patients who were G6PDD. Thirty patients were selected and randomly divided into two groups; First group treatment with prednisolone + imurane and the second group treatment with prednisolone + dapson. The study has begun from 2011/12/22. The patients for eleven months and at weeks zero, one, two, three, and four, two months later, three months later, five months later, seven months later, nine months later and eleven months later of treatment, are evaluated for recovery and complications the patient has been taking a careful history and physical examination as well as the series of experiments, two groups were compared.