Quick-acting heart pills are not often taken, the main ingredients of quick-acting heart pills are mainly musk and ice chips, which can play the role of rapid vasodilation. So the main role is to acute coronary heart disease caused by unstable angina, or acute myocardial ischemia attack patients appear obvious chest tightness shortness of breath, chest pain, as well as shoulder, the back of the radioactive pain to relieve the drug. Patients can take quick-acting heart pills during an attack, which can have a fast-acting effect. In general, angina pectoris can be relieved significantly in about 5 minutes after taking the pill orally. Although the above-mentioned drugs are fast-acting, but the concentration time in the blood is relatively short, so it is not suitable for long-term chronic use, long-term use of drugs and can not choose quick-acting heart pills.