Core Viewpoint - The article discusses three commonly used medications for acute angina: Nitroglycerin, Su Xiao Jiu Xin Wan, and Compound Danshen Dripping Pills, highlighting their differences in composition, mechanism of action, and suitable patient populations [1]. Group 1: Nitroglycerin - Nitroglycerin is the first-choice medication for acute angina, primarily acting as a vasodilator [2]. - It is indicated for the prevention and rapid relief of angina attacks caused by coronary artery disease [2]. - The recommended administration method is sublingual or buccal, with a dosage of one tablet during an acute attack, and it can be repeated every 5 minutes if necessary, up to three tablets within 15 minutes [3]. - Contraindications include early myocardial infarction, severe anemia, increased intracranial pressure, acute circulatory failure, or shock, and it should not be used with sildenafil [3]. - The onset of action is approximately 1-3 minutes, with maximum effect reached in 5 minutes, lasting at least 25 minutes [3]. Group 2: Su Xiao Jiu Xin Wan - Su Xiao Jiu Xin Wan serves as an alternative option for relieving angina, composed of Chuanxiong and Bingshen [4]. - It is indicated for promoting blood circulation and alleviating pain, particularly for patients with Qi stagnation and blood stasis type coronary heart disease [4]. - The recommended dosage is 4-6 pills per time, three times a day, with an increased dosage of 10-15 pills during acute attacks [5]. - It is contraindicated for pregnant women [6]. - It is recommended as a backup option when nitroglycerin cannot be used, and it should be taken sublingually for effectiveness [6]. Group 3: Compound Danshen Dripping Pills - Compound Danshen Dripping Pills are often used in conjunction with Western medicine for auxiliary treatment, containing Danshen, Sanqi, and Bingshen [7]. - Indications include promoting blood circulation and alleviating pain, particularly for chest pain due to Qi stagnation and blood stasis, as well as for certain diabetic eye conditions [8]. - The recommended dosage for angina is 10 pills three times a day, with a treatment course of 28 days [8]. - Caution is advised for pregnant or breastfeeding women and those with a tendency to bleed [8]. - It is generally used as an auxiliary treatment rather than a primary emergency medication for acute angina [8]. Group 4: General Recommendations - For all three medications, the recommended administration method during acute angina is sublingual, and patients should be seated while taking the medication [9]. - In cases of persistent chest pain, regardless of medication taken, immediate medical assistance should be sought [9].