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A member asked:
Is it safe to take two 24-hour antihistamine pills at the same time?
A doctor has provided 1 answer
Depends: It could be safe or not depending on the total dose you are taking in one day. By the way safe is conventionally defined, it will probably be safe and it will at most make you a little sleepy and contribute to reduced motor coordination, but in the context of operating a motor vehicle this could make a difference. You may want to see a doctor to get your allergies evaluated medically. Stay safe!
Answered 8/1/2018
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