To improve myocardial ischemia mainly through the use of drug therapy, the drugs that can improve myocardial ischemia are as follows: 1, beta-blockers, which can improve myocardial ischemia, nitrate drugs, the representative drug isosorbide mononitrate. beta-blockers improve myocardial ischemia by controlling heart rate and reducing myocardial oxygen consumption; 2, nitrates are used to improve myocardial ischemia by dilating the coronary arteries and increasing the blood supply to the coronary arteries; 3. There are also some drugs that improve myocardial metabolism, for example, trimetazidine can make the heart operate in a more energy-efficient way, and by doing so, it is equivalent to adding energy-saving agents, which can also improve myocardial ischemia. The main drugs that improve myocardial ischemia are beta-blockers, nitrates, and trimetazidine that improve myocardial metabolism. There is also nicorandil, which improves microangiopathy and microcirculation, all of which can improve myocardial ischemia.