Identification of the expiration date of domestic drugs: mainly depends on the expiration date or batch number. Drugs produced and sold after examination and approval by the drug regulatory authorities are marked on the original packaging bottles, or the production date or batch number is printed on the box label, and some are also printed with "expiration date". According to these data, we can judge whether it is outdated or not. The method of reading the expiration date is as follows: a If the batch number is 9 1 100 1, it means that the production date of the drug is 199 1 year 1 month1day. The manual may also be printed with "valid for three years" and expire after three years, that is, 1994 10 10/month. B If the batch number is 890 10 1 and the expiration date is 9 1092 1, it means that the drug was produced in February of12 and the expiration date is 302, which means that the drug was produced in1. Generally speaking, almost all injections and ointments in ophthalmology and dermatology are marked with expiration date, and some capsules are also marked with expiration date, while tablets are less marked, and Chinese medicines and their finished medicines are rarely marked. If a drug with no expiration date expires, it can be found from the appearance that: a. the tablets change color. If the white tablets turn yellow, black or red, or mildew or spots appear, it means that they have deteriorated and can no longer be taken. Granules and syrup taste bad. When granules and syrup fail, they often have peculiar smell (fermented taste), and some will be moldy. C. Injections with no expiration date will generally turn yellow or deepen in color, some will become turbid, and some will grow flocs. D. Sugar-coated tablets are ineffective, and often appear bursting, heterogeneous patches or spots, autolysis, blackening, mildew and other phenomena. E. When the ointment fails, it often appears hydration phenomenon, or becomes thin, discolored and smelly, and the gas in the ointment is full and the tube expands. F. Powdered drugs are ineffective, generally discolored or caked, and have a musty smell. Powder for injection can be yellow after dissolution.
How to treat the drug batch number? The production date is 10 minute.
According to the definition of "batch number" in good manufacturing practice (GMP), the old Zong Yi refers to a set of numbers or letters plus numbers used to identify a batch. "Batch" refers to a certain number of drugs with the same nature and quality produced within the prescribed limits and in the same production cycle. That is to say, in the process of drug production, the production unit uses a batch number to represent the drugs produced by the same material and the same production process. The production batch number can record the whole process of drug production, and all the information related to drug production can be found. The production batch number is represented by 6 digits, with the first two digits representing the year, the middle two digits representing the month and the last two digits representing the date. For example, the batch number of a drug is "1202 13", which was produced in February of 12.
The "approval number" of drugs, also known as "National Medicine Zhunzi", is a sign of the legitimacy of drug production and an important basis for identifying drugs and distinguishing between true and false drugs. The format of the drug approval number is: Chinese medicine quasi-word+1 digit letters (h, z, s, J)+8 digits (4-digit year number +4-digit sequence number), where h stands for chemical drugs, z stands for traditional Chinese medicine, s stands for biological products and j stands for imported packaged drugs.
How to read the expiration date of drugs
Look at the packaging box of the medicine, which has the date of manufacture and the expiration date. Some medicine bottles also have factory date and expiration date. Be clear at a glance. Look at it a few times and you will understand.
What about the date of the drug?
The production date of this bottle of medicine is 201March 6 14, and the validity period is 201March 9 13. I hope I can help you. Please accept it if you are satisfied.
How to check the validity period of drug approval number
China Food and Drug Network
How to determine the expiration date of drugs
The expiration date in the drug label shall be marked in the order of year, month and day, with the year indicated by four digits and the month and day usually indicated by two digits. Its specific labeling format is "valid until XX" or "valid until XX"; It can also be expressed by numbers and other symbols as "valid until XXXX". XX "or" valid until XXXX/XX/XX "and so on.
The expiration date of preventive biological products shall be marked according to the registration standards approved by the US Food and Drug Administration. The expiration date of therapeutic biological products shall be calculated from the date of packaging, and the expiration date of other drugs shall be calculated from the date of production.
If the validity period is marked on day, it is the day before the month corresponding to the start date, and if it is marked on month, it is the month before the month corresponding to the start month.
For example, if the expiration date of a drug is 2 years and the production date is 20 12-5- 17, then the expiration date is 20 14-5- 16. The drug packaging box must be printed with the production date, expiration date and production batch number of the drug. Please pay attention when buying.
What do you think of the production date and shelf life of this medicine?
Produced in 2008 .. 65438+expired in 2003.