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A member asked:
What is the safest amount of diphenhydramine you can take at once?
A doctor has provided 1 answer
Risks and benefits: Although there are rare times when a doctor may advise you to take as much as 100mg of this drug, it is a better idea not to exceed 25mg per dose. Over 25mg the added risks generally outweigh the benefits.
Answered 7/29/2014
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