氨茶硷遇到糊精、糖粉很快就能变色,因此,氨茶硷片在贮存期间常因变色影响了产品质量。为进一步探索变色因素,我们使用不同的辅料作加速考核和室温留样观察,发现淀粉、氢氧化铝、羧甲基纤维素钠与变色有关。磷酸氢二钾有防止或延缓其变色的作用,并加适量滑料,压得的片剂质量稳定。现将试验情况介绍如下: Aminochaeta encounters dextrin, and the powdered sugar quickly discolours. Therefore, aminophylline tablets often affect product quality during storage due to discoloration. In order to further explore the factors of discoloration, we used different excipients for accelerated examination and observation of room temperature samples and found that starch, aluminum hydroxide and sodium carboxymethyl cellulose are related to discoloration. Dipotassium hydrogen phosphate to prevent or delay the role of discoloration, and add the appropriate amount of slippery, pressed tablet quality and stability. Now the test situation is as follows: