1, shelf life of vitamin e
The period of validity of drugs refers to the period during which the quality of drugs can meet the specified requirements under the specified storage conditions. The expiration date of drugs can be divided into the following three types: directly indicating the expiration date, calculating the expiration date from the production batch number, and directly indicating the expiration date. How long is the validity period of vitamin E in Yangshengtang? Never take expired medicine.
The antioxidant capacity of human body decreases with age. After the age of 25, the production of oxygen free radicals gradually exceeds the human body's ability to bear, and the characteristics of aging begin to appear. Appropriate vitamin E supplementation at this time can effectively delay aging. Especially in modern society, the radiation of mobile phones, microwave ovens and refrigerators, and the pollution of the atmosphere and living environment will accelerate the aging of the human body. It is a wise choice to supplement vitamin E as soon as possible. Vitamin E is a fat-soluble vitamin, which needs to be combined with safflower seed oil, perilla oil and other ingredients to facilitate absorption. For example, safflower seed oil and perilla oil in Yangshengtang natural vitamin E capsules are rich in unsaturated fatty acids such as linoleic acid and linolenic acid, which can play the best role when used together with natural vitamin E; On the other hand, they also have the functions of preventing aging and regulating endocrine, which is very beneficial to women.
The validity period of vitamin E in Yangshengtang is 24 months. If the medicine is expired, remember not to take it.
2. Drug hazards beyond the shelf life
1. After the expiration of the drug, the content of its effective components decreased, and the drug could not exert its original efficacy. Antibiotics, such as penicillin and cephalosporin, have poor stability and are easy to reduce or fail. Taking it after expiration may delay the illness. Another example is nitroglycerin for angina pectoris, which is very volatile. Once it expires or fails due to improper preservation, it will not only have no curative effect, but also pay the price of life.
2. After the drug expires, the chemical composition of the drug changes, and the toxicity increases, causing harm to the human body. For example, after the expiration of aspirin, the side effects on the human body have increased significantly. Invalid aspirin can change the activity of ATPase, enhance the toxic effect on the ear, and lead to hearing loss; Another example is the failure of penicillin, which may form a series of decomposition products that are more likely to cause allergic reactions than penicillin, such as penicillic acid and penicillamine, which may easily lead to allergies and shock.
Once the medicine has expired and deteriorated, it should be completely destroyed, but don't throw it away casually. The best way is to return expired and deteriorated drugs to designated institutions for centralized treatment, so as not to cause others to take them by mistake and pollute the environment. At the same time, remind everyone to keep drugs in strict accordance with the drug instructions, and put commonly used drugs at home out of the reach of children to ensure safety.