盐酸异丙嗪片剂,针剂不便小儿使用。医院制成糖浆剂,用于门诊效果满意。但该药在自然光室温条件下,二、三天就变成茄紫色。为了延缓变色时间,做了不少努力,如加抗氧化剂焦亚硫酸钠、用棕色瓶装、由淀粉浆改为糖浆、用冰箱保存、但总不理想。如用冰箱保存,开始是无色的,但发到门诊,不久即变色,引起疑虑。就是放在药房冰箱内的,因经常取用,多次曝光也显茄紫色,只好废 Promethazine hydrochloride tablets, injection inconvenience pediatric use. The hospital made syrup for outpatient results satisfactory. But the medicine in natural light room temperature conditions, two or three days into a purple eggplant. In order to delay the discoloration time, made a lot of efforts, such as antioxidant sodium metabisulfite, with a brown bottle, starch syrup into a syrup, with the refrigerator to save, but not always ideal. If kept in a refrigerator, the beginning is colorless, but sent to the clinic, soon change color, causing doubt. Is placed in the pharmacy refrigerator, due to frequent access, multiple exposure was also bright purple, had to waste