Quick-acting Heart Pill can increase coronary blood flow, improve myocardial ischemia, and reduce the resistance of peripheral blood vessels. It can also improve microcirculation and reduce blood viscosity, with the effect of moving Qi and blood, dispelling blood stasis and relieving pain. In clinical practice, it is mainly used to treat coronary heart disease, angina pectoris, chest tightness and breath-holding. Generally speaking, patients are recommended to take 4-6 capsules under the tongue each time, 3 times a day, every 4 weeks as a course of treatment. When symptoms are acute, 10-15 capsules can also be taken sublingually at one time. The main ingredients are Chuanxiong and Bingxiong, and there are no significant adverse reactions and precautions to be taken, but it is generally not recommended for pregnant women. If the patient has obvious angina symptoms and has been diagnosed with coronary artery disease, it is recommended to switch to nitroglycerin, which has a better vasodilating effect and can better stop the onset of angina symptoms.