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

Upset stomach, took 4 mg zofran, (ondansetron) how much can i take? deathly afraid of throwing up

A doctor has provided 1 answer

8 mg: Normally 4 mg works pretty good. I would not suggest you take more than 8 mg every eight hours without consulting your physician. Higher doses are usually required for someone with chemotherapy.

Dr Alves agreed

Answered 3/22/2020

4.5k views

Thank

Related Questions

A member asked:

Can you take zofran (ondansetron) when you are taking sertraline 50mg daily. Taking zofran (ondansetron) for stomach flu?

A doctor has provided 1 answer

A member asked:

How often can I take zofran (ondansetron) for the stomach virus? Severe nausea keeps returning 5 hrs after taking 4mg

A doctor has provided 1 answer

A member asked:

Went to er last night for stomach pains. they did tests&came back normal.they gave me norco 5mg. im nauseated. i have zofran (ondansetron) can i take it with norco.

A doctor has provided 1 answer

A member asked:

How many mg of Zofran (ondansetron) should one take & how often, for a stomach bug, IF they already take 8mg at least 3x a week for severe nausea caused by anxiety?

A doctor has provided 1 answer

A member asked:

Probably a dumb question, but I take two doses of ODT Zofran (ondansetron) daily due to disease and nausea. Does this help protect me from vomiting from stomach flu?

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:

I live in Sweden and My doctor gave me zofran (ondansetron) to take when i get the stomach flu to take away vomiting. Do zofran (ondansetron) help? Scared of vomit, panic!
I'm on flexeril for a muscle strain. I have a stomach bug tonight, is it safe to take Zofran (ondansetron) while on the muscle relaxer? I can't stop throwing up!
I took Zofran (ondansetron) 8mg around 11am and am feeling sick to my stomach again, but would prefer to take Promethazine now, at 6:15pm. Is this safe to do?
Can you tell me if i could take Zofran (ondansetron) for the stomach flu?
Stomach cramps and period, can I take Zofran (ondansetron) with adderall?

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.