HealthTap Online Primary Care Doctors Accepting New Patients
Book a video visit
HealthTap
Telehealth
A member asked:

I feel sleepy after talking allegra, (fexofenadine) i'm unable to wake up early in the morning, ?

A doctor has provided 1 answer
Dr. Robert Killian answered

Specializes in General Practice

Anti-histamines: This is not unheard of. Allegra (fexofenadine) is one of the non-sedating anti-histamines, but some patients do get this side effect, unfortunately. It sounds like you should choose a different anti-histamine.

Answered 3/15/2016

4.7k views

Thank

Related Questions

A member asked:

Is it possible for you to take an allegra (fexofenadine) in the morning then a claritan d at night?

A doctor has provided 1 answer

A member asked:

I took a 24 hour Allegra (fexofenadine) this morning and a nigttime Allegra (fexofenadine) at night. Will I be ok?

A doctor has provided 1 answer

A member asked:

I take Allegra (fexofenadine) in the morning. My doctor prescribed singular at night. I took it once & had a really severe headache all night. Should I take it again? Cut in half? Or look for something different.

5 doctors weighed in across 3 answers

A member asked:

Allegra (fexofenadine hydrochloride 120 mg )at morning and levocet 5mg at night for 60 days.how effective these medicines for cholinergic utricaria?

A doctor has provided 1 answer

A member asked:

Is it okay to take loratadine and Allegra (fexofenadine) together in the morning for combined effectiveness. Should I seek allergy shot. How good is it?

A doctor has provided 1 answer

Sponsored Content
HealthTap Medical Group does not endorse products or services. Sponsored content revenues support our mission to make health information free and accessible to all.Learn more

People also searched for:

What is good otc antihistamine to take for someone have asthma..I take clarity sometimes but it makes me drowsy and sleepy..is allegra (fexofenadine) better?
Does Allegra (fexofenadine) cause drowsiness? From what I've read it doesn't seem as if it should but I feel very drowsy about 30 minutes after taking it. 180 mg gel
I'm having an exercise induced asthma attack and don't have my inhaler. I took Allegra (fexofenadine) this morning but would taking another help?
Can i take allegra (fexofenadine) in the morning and zyrtec at night?
My fiance took 5 allegra (fexofenadine) 24hr and threw up the next morning now today is day two he is weak and has the shakes at work. He works in the sun daily.

Telemedicine

Primary Care
Manage Your Conditions
Women's Health
Children's Health
Men's Health
Senior Health
Wellness, Prevention & Lifestyle
Sexual Health
Mental & Behavioral Health
Travel Medicine
Urgent Care
Ask your question
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 question

More of what we treat

Allergies
Antibiotics
Asthma
High Blood Pressure
Prescriptions
Type 2 Diabetes
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.
HealthTap
HIPAA logo
HIPAASecure
Soc 2 Type 2 logo
SOC 2 Type 2Certified
JCAHO Accredited
JCAHOAccredited
Member App

Download HealthTap

Video visit and message your doctor

Member App QR Code
Play Store Member LinkApp Store Member Link

Questions?

+1 (888) 828-0841support@healthtap.com
LinkedInTwitter
HomeTermsPrivacyCookiesDMCAHealth TopicsDoctors DirectoryDoctor Q&A by Specialty
Copyright 2026 HealthTap, Inc.