Ondansetron is an antiemetic medication. It works by blocking the action of a chemical messenger (serotonin) in the brain that may cause nausea and vomiting during anti-cancer treatment (chemotherapy) or after surgery.
Ondansetron starts working within half an hour to 2 hours. It dissolves rapidly into the bloodstream and starts showing its effect.
Q. What are the side effects of Ondansetron?
The most common side effects of Ondansetron are constipation, diarrhea, fatigue and headache. However, these are usually not bothersome and resolve on their own after some time. Consult your doctor if these persist or worry you.
Q. When should you take Ondansetron?
Ondansetron should be taken with a full glass of water, with or without food. It should be used exactly as per the dose and duration advised by the doctor. Usually, the first dose of Ondansetron is taken before the start of your surgery, chemotherapy or radiation treatment.
Q. Is Ondansetron a steroid?
No, Ondansetron is an antiemetic and not a steroid. Ondansetron is a selective 5-HT3 receptor antagonist. It is prescribed for the prevention and treatment of nausea and vomiting which is commonly observed after surgery or due to cancer chemotherapy.
Q. Does Ondansetron work for seasickness?
No, Ondansetron does not work for seasickness. This is because Ondansetron has very little effect on the nausea associated with motion sickness.
Information last updated by Dr. Varun Gupta, MD Pharmacology on 11th Mar 2020. The medicine details are for information purpose only. Consult a doctor before taking any medicine.