5-2 hours
This medicine may cause a serious heart problem called myocardial ischemia (low blood supply to the heart)
Common Zofran side effects may include: diarrhea or constipation; headache; drowsiness; or
See medically reviewed information on Ondansetron
Ondansetron is used to prevent nausea and vomiting that is caused by cancer medicines (chemotherapy) or radiation therapy
Headache, lightheadedness, dizziness, drowsiness, tiredness, or constipation may occur
A pilot study of 19 patients with chronic fatigue syndrome suggests that ondansetron may decrease fatigue and improve physical capacity
This is also not a complete list of
Interactions
Common side effects of Zofran may include: diarrhea or constipation; drowsiness; fever; or
Zofran side effects (more detail) Side Effects
If these effects last or get worse, tell your doctor promptly
Call your doctor for medical advice about side effects
05 to 0
The medication is also used as a short-term treatment for the ongoing heartburn
Chills
diarrhea
The most commonly reported side effects (occurring in more than 10% of adults) include headaches, fatigue, dry mouth, malaise, and constipation