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• Time of issue:2021-02-05 15:19
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(Summary description)The expiration date of the drug refers to the approved period of use of the drug, indicating that the drug under the specified storage conditions to ensure the quality of the period. After opening, the drug may undergo various changes due to contact with air and under the influence of temperature, humidity, light and other factors, which may easily affect the efficacy of the drug and may shorten its use period. Therefore, it is necessary to place the drugs in strict accordance with the specific storage conditions marked on the drug instructions.        After opening, the duration of use of bottled drugs is about 2 months at room temperature of 25℃. When used again, it is not suitable for use if the following conditions occur: discoloration, moldy spots, obvious changes in smell or taste; loose tablets or pills, rupture of sugar-coated tablets, appearance of off-color patches or spots, autolysis, etc.; softening of capsules or serious adhesion on the surface, etc. Bagged medicine is mostly granules or powder, which is easy to expire, so it should be used up within 1 month after opening. Once there is moisture absorption, softening caking, dampness and other phenomena, should not be used. Liquid preparations, such as syrup, can be stored at room temperature of 25℃ for 1-3 months after opening, generally not more than 3 months in winter and not more than 1 month in summer. If there is acidity, gas, flocculent suspension, precipitate discoloration, crystallization and other deterioration phenomena, it can no longer be used.        Ointment can be kept at room temperature for 2 months at most. If there are obvious particles, dissolution, water and other phenomena, it should not be used.        There are many things that need to be paid attention to after the opening of drugs, for the efficacy of drugs and human health, or need to strictly follow the instructions for storage and use, and need to understand certain knowledge of drug storage, in order to better play their role.