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松香或其衍生物广泛用于油漆、清漆、食品、化妆品及齿科产品。1985年已报道它作为缓释药物的包衣材料。松香硬石蜡混合物(RHPC)是最有用的肠溶衣材料,也是抗湿性最好的包衣材料。此肠溶衣材料广泛用来保护对酸敏感的药物,以防止胃痛、恶心发生。阿司匹林颗粒20/30目用包衣锅法以10%RHPC的丙酮溶液包衣。释放研究在五个不同pH介质中进行3小时。在pH 1、2或3.0时,3小时释放量分别小于5%或15%,说明RHPC膜的抗酸性能
Rosin or its derivatives are widely used in paints, varnishes, food, cosmetics and dental products. It has been reported in 1985 as a coating material for sustained release drugs. Rosin hard paraffin mixture (RHPC) is the most useful enteric coating material and the best moisture-resistant coating material. This enteric coating material is widely used to protect acid-sensitive drugs to prevent stomach ache and nausea. Aspirin particles 20/30 mesh coated with a 10% RHPC acetone solution. Release studies were performed in five different pH media for 3 hours. At pH 1, 2 or 3.0, the 3-hour release was less than 5% or 15%, respectively, indicating that the acid resistance of RHPC films