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A member asked:
Can i take a 12 hour alegra d now at 4:30pm when i took a (plain) zyrtec (cetirizine) (24 hour) at midnight?
A doctor has provided 1 answer
Yes: No problem but the Allegra (fexofenadine) D at 4:30 pm may impact your sleep.
Answered 4/14/2016
1.4k views
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