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A member asked:
Are there any side effects of vitamin c megadoses to fight flu symptoms?
A doctor has provided 1 answer
Laxative effect: Vitamin c is extremely safe. Excessive doses (usually over 5000 mg a day) can cause a laxative effect, but it is advised to take it until you get loose stools when you have the flu. Vit. C can interact with certain medications, esp. Coumadin (warfarin) (which interacts with everything!). See http://lpi.Oregonstate.Edu/infocenter/vitamins/vitaminc/ see my comment for more info.
Answered 6/24/2014
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