How To Use Vitamin A?
Question: I'm 40 years old, 2 years ago, I used to itch and felt like something was covering my eyes. I went to the doctor, the doctor told me that my eyes were dry and prescribed medication. Then a friend told you if your eyes dry, then taking vitamin A will be very good. Since then, sometimes I have to buy vitamin A to drink. Please ask to take such medicine okay? Thank you! (Nguyen Bich Hong - Bac Ninh)
Reply
Vitamin A is an oil-soluble vitamin, which is important for the body to help cells carry out normal replication, essential for visual health, helping cells in a variety of structures
Vitamin A is found in liver, fish, milk, eggs ... in plants like Gac, carrots, tomatoes, greens ... However, if used incorrectly, we will encounter adverse effects
Acute poisoning: When taking very high doses, adults> 1,500,000 UI / day, children> 300,000 UI / day, usually appear after taking medicine for 4-6 hours, dizziness, nausea, vomiting, irritation, diarrhea, convulsions, delirium. Chronic poisoning: When using a dose of over 100,000 UI / day for 10-15 days, manifested fatigue, irritation, gastrointestinal disorders, hepatomegaly, splenomegaly, skin discoloration, chapped, bleeding hair loss, increased calcium, edema, children can increase intracranial pressure, tinnitus, stop growing long bones ... long term pregnant women will be teratogenic.
Most notably is the ability to cause liver toxicity. Taking too much vitamin A is a cause of liver toxicity depending on the dose that can lead to cirrhosis. Taking large doses of vitamin A regularly (> 25,000 units / day) can cause chronic poisoning and liver damage.
Liver damage can occur from 15,000 to 40,000 units / day in a year, but higher doses can be poisoned within months. Liver damage more or less depending on the dose and duration of use.
In the letter, you did not say in detail how to use your vitamin A, for how long and how much it should not give exact advice. Although vitamin A is important for the body, we should not overdo it, preferably before using it, consult your doctor.. . Dịch vụ: Thiết kế website, quảng cáo google, đăng ký website bộ công thương uy tín
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