A member asked:

5"1, 97lb female how much zofran (ondansetron) should be taken at the onset of a stomach virus to prevent vomiting?nausea not as imp main goals to prevent vomiting

A doctor has provided 1 answer
Dr. Alvin Lin answered

As prescribed: Always take medications as prescribed by doctor. Your pharmacist can also chime in. Zofran (ondansetron) is an antiemetic. Check out http://www.drugs.com/dosage/zofran.html. Dosing regimens differ depending upon known cause but 8mg every 8hrs as needed is noted at www.epocrates.com for nausea/vomiting related to gastroenteritis.

Answered 5/30/2015

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