各种药物都有一定的使用期限,超过使用期限的药物会失去疗效,甚至变成对机体有害的物质,不能再用,但如果药物保存不善,虽然在有效期内也会失效、变质,故药物的妥善保存非常重要。不同药物的保存方法不同,但亦有共同原则,那就是“密闭、低温、避光”保存。密闭不仅可以避免药物因吸潮而变质, (如胶丸、胶囊等可吸潮崩解),也可以避免药物与 All kinds of drugs have a certain period of use, beyond the expiration date of the drug will lose efficacy, and even become harmful to the body of the material, can not be used, but if the poor preservation of drugs, although the validity period will fail, deterioration, so the drug The proper preservation is very important. Different methods of preservation of different drugs, but there are common principles, that is “airtight, low temperature, dark ” save. Airtight not only to avoid drug deterioration due to moisture absorption (such as capsules, capsules, etc. can absorb moisture disintegration), but also to avoid drugs and