Because vitamin b 12 is mainly used to treat pernicious anemia, it is also used for some nervous system weakness, such as neuritis and nerve atrophy. When excessive vitamin b 12 is injected, allergic reactions such as asthma, nettle, eczema, facial edema and chills may occur, as well as nervous excitement, precordial pain and palpitation. Excessive intake of vitamin b 12 can also lead to folic acid deficiency.
Extended data:
Precautions:
1. When taking vitamin B 12, you must pay strict attention to your diet. Some users may want to take other drugs at the same time to improve the effect. This method is not advisable. Just like other drugs, you should use them under the guidance of a doctor. Don't mix your own drugs.
2. When users take vitamin B 12 tablets, their diet should be cool, and they should avoid hot, greasy and fishy beef and mutton and irritating food.
3, according to the user's situation, dietary taboos are also different. For example, fever should eat spicy, greasy and fried food, cold disease should eat fat meat, animal offal, alcohol and tobacco, and eat less hot products such as spicy, pepper, garlic and liquor.
4. People with weak spleen and stomach should avoid frying sticky and indigestible food. Users suffering from sores and skin diseases should avoid fishy mutton and irritating food, such as fish, shrimp and crab.
Baidu Encyclopedia-Vitamin B 12