Get Virtual Care
  • Primary Care
  • Urgent Care
  • FAQs
  • Support Center
For Businesses
  • Direct Primary Care for Organizations
  • For DMEs and Pharmacies
  • For Health Plans
  • For Providers
About Us
  • Who We Are
  • Why HealthTap
  • Our Standards
  • Contact
Log in
Book a video appointment
Book now
  • Get Virtual Care

    • Primary Care
    • Urgent Care
    • FAQs
    • Support Center
  • For Businesses

    • Direct Primary Care for Organizations
    • For DMEs and Pharmacies
    • For Health Plans
    • For Providers
  • About Us

    • Who We Are
    • Why HealthTap
    • Our Standards
    • Contact
Log in to HealthTap
HealthTap Online Primary Care Doctors Accepting New Patients
Book a video visit
HealthTap
Telehealth
A member asked:

Is it safe to take an expired antihistamine drug? i found a box that expired a year ago in my medicine cabinet. thanks.

A doctor has provided 1 answer
Dr. Alan Ali answered

Specializes in Psychiatry

Antihistamine: Expired medicine most likely loses its potency.

Answered 4/28/2019

5.1k views

Thank

Related Questions

A member asked:

Can I give my 6 year old child half an allergex tablet? She has a post nasal dry cough, and i need an antihistamine for her (along with the couch suppressant syrup), but I have run out of allergex syrup. Please advise Thank you

A doctor has provided 1 answer

A member asked:

Can I take antihistamines forever to help with nasal stuffiness? Using for 1 year every day. Allergist can't detect allergen. No other option!

A doctor has provided 1 answer

A member asked:

My 93 year old mother has been popping up with hives over the past 24 hours, she is refusing to see a doctor, I don't know what to do as she has untreated Closed Angle Glaucoma and I don't think she can take antihistamines, advice please?

A doctor has provided 1 answer

A member asked:

Can an 18 lb. One-year old take pediacare (acetaminophen) with equate (antihistamine)? He has a fever and runny nose.

4 doctors weighed in across 2 answers

A member asked:

My 8 year old son has horrible allergies. He takes Zyrtec, allergy eye drops and nasal spray. Can he take delsym 12 hour for his cough? Not sure if he can while taking all those antihistamines?

3 doctors weighed in across 2 answers

People also searched for:

What causes the interaction between antipsychotic drugs and antihistamines? thanks.
I have heavy allergic to seafood. Is it possible to take antihistamine drug as profilaxis to minimize allergic reaction?
Will Claritin (loratadine) protect against drug allergies for a full 24hrs? Is it safe to use it if i've had hives from other, unrelated antihistamine pills?
Ive had reactions to benadryl abd phenegran that include high HR, full body shaking, high BP. Is hydroxizine therefore bad for me to take for anxiety since it too is a 1st generatiin antihistamine? Afraid to try due to bad reactions to other drugs.
I have mild asthma and take antihistamines year round, i've stopped taking them unless needed but my asthma has flared up, are they connected?

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

For Businesses

Direct Primary Care for OrganizationsFor DMEs and PharmaciesFor Health PlansFor Providers

Company

About UsSupport CenterContact Us

Health Content

Health TopicsDoctor Q&A by Specialty

Join Us

For DoctorsJobs
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.