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

My 6yo son has seasonal allergies. 10mg of 24hr claritin (loratadine) quits working for him after approx 12hrs. can i give him a 2nd 10mg dose?

A doctor has provided 1 answer
Dr. Al Hegab answered

Specializes in Allergy and Immunology

No: Don't double up on antihistamines, and refrain from self medicating after a certain point. He needs to be evaluated by his doctor/allergist, check aaaai.org or acaai.org for an allergist in your area, best wishes best wishes

Answered 12/9/2016

1.4k views

Thank

Related Questions

A member asked:

My pollen allergies are killing me. I'm taking Claritin (loratadine) but its not working well what else can I take that is non drowsy?

A doctor has provided 1 answer

A member asked:

Had a miscarriage. Still need to take prenatals for 6 weeks. Throat is dry and I think its from my seasonal allergies. Can I take Claritin (loratadine) or zirtec?

6 doctors weighed in across 2 answers

A member asked:

When seasonal allergy hits hard on day 1, does it help to take 20mg loratadine on 1st day to jump start relief?

A doctor has provided 1 answer

A member asked:

I gave my 6 year old daughter Claritin (loratadine) this morning at 10 a.M. And now it is 5 p.M. Can i give her childrens muciex right?

A doctor has provided 1 answer

A member asked:

My 3 year old daughter has real bad allergies. I gave her Claritin (loratadine) but it's not really working. I also used Vicks on her. Will that help her?

3 doctors weighed in across 2 answers

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:

My son has seasonal outdoor allergies. Nothing too severe, but claritin (loratadine) doesn't seem to be doing much today.can i give allegra too?
Dr prescribed my 4 yr old son Claritin (loratadine) for allergies. Can i give him 1/2 of the 10mg reditab instead of buying the childrens 5mg tabs?
My allergy medication is no longer working. How long should I wait after stopping daily 10mg Loratadine doses before switching to daily 180mg fexofenadine doses? I've read that don't want to mix anti-histimines, so is a wait period necessary?
My ten year old has seasonal allergies for the first time. I gave her 24 hr Claritin (loratadine) at 7:30 am. It's 9pm. Can I give her children's diphenhydramine?
If I'm having severe allergy issues due to very high pollen levels, is it okay to take a double dose of claritin (loratadine)?

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.