The drug treatment of coronary angina is divided into two periods, namely the stable period, the unstable period, the treatment is as follows: First, the stable period: If the angina is in the stable period, that is, not frequent attacks in the last month, and the usual angina, you can apply beta-blockers, nitrates, calcium channel blockers, trimetazidine, Chinese medicine preparations, etc., as follows: 1. beta-blockers: beta receptor blockers including betalactam, bisoprolol, etc. These are anti-anginal drugs that can prevent the onset of angina and have a lasting effect. But pay attention to the heart rate, if the usual heart rate is less than 60 times / min, not suitable for this drug, because this drug can slow down the heart rate. 2, nitrate drugs: such as isosorbide nitrate or long-acting isosorbide mononitrate. 3, calcium channel blockers: calcium channel blockers can reduce myocardial oxygen consumption, expand the coronary arteries, improve the symptoms of angina, including verapamil, diltiazem, etc. 4, trimethoxazole. 4, trimetazidine: calcium channel blocker drugs are mainly to improve myocardial metabolism. 5, Chinese medicine preparations: such as salvia drops, these drugs can play the role of blood circulation and blood stasis. Second, the unstable period: unstable angina, such as frequent attacks in this nearly a month, such unstable angina need to add antiplatelet, anticoagulant drugs, for example, you can use nitroglycerin spray, or containing nitroglycerin tablets, in addition to aspirin, clopidogrel. If the condition is extremely severe and the medication is not effective, only emergency coronary angiography can be considered and PCI can be given.