Due to the economic aspects, in this study the efficacy and safety of oral sustained release drug made inside country (Dorocontin) is compared with an importing drug (Sustak). It can halt export of millions of dollars from our country. This study was initiated at April 2011. It was carried out on 140 cases in Bqyiatallah hospital as a random, double blind, uni-central, parallel, without control. In this study, Inclusion criteria include Having clinical signs of IHD; on the other hand Exclusion criteria involves any Background diseases, Having signs of unstable angina, and any Simultaneous drug conflicts. Some parameters such as joints pain, AlkP, LDH, sGOT, Tachypnea, Dyspnoeic, Headache, Organ edema, Vomiting, Nausea, BUN, Serum Cratinine, sGPT, Heart Functional Activity, Resistance against Physical Activities, and Hypertension were used to evaluate clinical conditions of cases.