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A member asked:
Took a claritin 3 hours ago for mild shrimp allergy . it did nothing. can i take a benadryl now?
A doctor has provided 1 answer
Yes : If you have just started claritin it does take a good 18 hrs or more to get up to effective levels. Benadryl gets there in an hour & can bind with histamine receptors more firmly. I would consider it a better drug for your use for that reason & it will not interfere in any important way with the claritin. The Benadryl is more likely to sedate you while used in usual doses.
Answered 4/28/2019
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