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A member asked:
Husband recently began taking vitamin a 1 week ago to aid with wound healing per his md. he now has swollen hands with a rash that looks like hives. i gave benadryl. he told me he's been taking 2400 qid. doc said take 10,000 mcg. is this too much?
2 doctors weighed in across 2 answers
Just for supplement, not treating Vitamin A deficiency, dose of 10,000 mcg a day is too high. The maximally recommended supplement dose is 3,000 mcg or 10,000 IU, daily. If rash is suspected due to the current vitamin A supplement, you may need to change to a different brand. High dose of vitamin A is not the reason for the rash.
Answered 10/2/2021
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10000 mcg of vit A is about 30000 units. 25000 units a day can cause toxicity. Skin changes are a symptom of vit A toxicity. Please check with your pharmacist to validate this.
Answered 10/3/2021
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