Long term: Allegra (fexofenadine) is a new generation, non-drowsy antihistamine with a good safety profile. In general antihistamines as a class have been around for decades and long term use has not been associated harmful side effects. Most clinical trials for safety are 1 year, but practically speaking, Allegra is safe for ongoing use.
Answered 3/28/2020
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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