Get Virtual Care
For Businesses
About Us
A member asked:
How long does it take for allegra's effects to begin?
A doctor has provided 1 answer
Pretty Quickly: Allegra (fexofenadine) and most otc antihistamines has its effect within the first 30 -60 minutes.
Answered 3/26/2021
5.6k views
Thank
Related Questions
A member asked:
Can I take allegra (fexofenadine) with singular?
4 doctors weighed in across 2 answers
A member asked:
Can i take allegra (fexofenadine) if im on loratabs?
2 doctors weighed in across 2 answers
People also searched for:
What are the side effects of Allegra (fexofenadine) when is the best time to take it ?
Are there other medicine I can take with Allegra (fexofenadine) D that won't cause bad side effects?
Are there any negative side effects if i take one 180mg allegra (fexofenadine) tablet daily for years? I have allergies all yr.
If you take doses of Allegra Allergy 24 Hour too close together for almost 3 days, are there any side effects to look out for? And can stopping the medication stop the issues?
I'm currently taking Allegra-D 24hr daily, can I also take the occasional Diphenhydramine? I mainly would use the Benadryl (diphenhydramine) for sedative effects.
Didn't find what you're looking for?
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your questionMore of what we treat
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.
HIPAASecure
SOC 2 Type 2Certified
JCAHOAccredited
Download HealthTap
Video visit and message your doctor
