Yes: The limiting factor as to how much antihistamine one can take is generally what the side-effects are. If it makes you too sleepy when combined with other anti-histamines then you should be careful about combining them.
Answered 7/18/2012
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4 doctors weighed in across 2 answers
4 doctors weighed in across 2 answers
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A doctor has provided 1 answer
A doctor has provided 1 answer
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