To investigate clinical efficacy of angiotensin-converting enzyme inhibitor trandolapril and its effects on myocardial function.20 patients with ischemic heart disease (IHD) aged 33-74 years with chronic cardiac failure NYHA class II-IV. 4 of them survived myocardial infarction. In addition to the routine tests, the patients underwent echocardiography, radionuclide ventriculography. Trandolapril was given once a day for 28 days in a dose 2 mg, then a repeat examination was performed.Trandolapril produced a subjective effect in 80% of patients. There was also improvement of hemodynamic parameters, an increase in the ejection fraction, sensitivity to nitroglycerin, decline of asynchrony. The drug was well tolerated.Trandolapril (Gopten) is effective in IHD patients with chronic cardiac failure.