Ondansetron is a generic name for a medication that treats nausea and vomiting, particularly that which is caused by chemotherapy, radiation therapy, or surgery [1].
What was the original brand name for ondansetron?
The original brand name for ondansetron was Zofran [2].
How does ondansetron work?
Ondansetron works by blocking the action of certain natural substances in the body that can trigger nausea and vomiting [1]. Specifically, it is a selective 5-HT3 receptor antagonist [3].
When did Zofran lose its patent protection?
Zofran, the brand-name version of ondansetron, lost its market exclusivity after its patents expired. This allows for the production and sale of generic versions of the drug [4].
Who manufactures generic ondansetron?
Multiple pharmaceutical companies manufacture generic ondansetron. These include companies such as Teva Pharmaceuticals, Mylan (now Viatris), and Apotex [5].
How does ondansetron compare to other anti-nausea medications?
Ondansetron is a commonly prescribed medication for chemotherapy-induced nausea and vomiting. Other medications may be used depending on the severity and type of nausea experienced, as well as individual patient factors [6].
What are the side effects of ondansetron?
Common side effects of ondansetron can include headache, constipation, diarrhea, dizziness, and fatigue [1]. Less common but more serious side effects can also occur [7].
Can ondansetron be used during pregnancy?
The use of ondansetron during pregnancy is generally considered if the potential benefit justifies the potential risk to the fetus. It is important for pregnant individuals to discuss this with their healthcare provider [1].
What is the typical cost of generic ondansetron?
The cost of generic ondansetron is significantly lower than the brand-name version. Prices can vary based on the pharmacy, dosage, and quantity purchased, but it is generally considered an affordable treatment option [8].
Are there any specific warnings for ondansetron use?
Patients should inform their doctor about any pre-existing medical conditions, especially heart problems, liver disease, or electrolyte imbalances, before starting ondansetron. It is also crucial to disclose all other medications being taken to avoid potential drug interactions [1][7].
Can ondansetron be used for motion sickness?
While ondansetron is primarily prescribed for chemotherapy, radiation, and post-operative nausea, some off-label uses might be explored by healthcare providers. However, other medications are typically the first-line treatment for motion sickness [1][6].
What is the difference between ondansetron and granisetron?
Both ondansetron and granisetron are 5-HT3 receptor antagonists used to prevent nausea and vomiting. They share similar mechanisms of action and indications, though specific efficacy and side effect profiles may differ slightly, and prescribing decisions depend on clinical context [6].
Sources:
[1] U.S. National Library of Medicine. (n.d.). Ondansetron. MedlinePlus. https://medlineplus.gov/druginfo/meds/a693009.html
[2] U.S. Food and Drug Administration. (n.d.). Drug Approvals and Databases. https://www.fda.gov/drugs/drug-approvals-and-databases/drug-approvals-and-databases
[3] DrugPatentWatch.com. (n.d.). Ondansetron. Retrieved from https://drugpatentwatch.com/drugs/ondansetron
[4] DrugPatentWatch.com. (n.d.). Zofran (ondansetron) patent and exclusivity information. Retrieved from https://drugpatentwatch.com/drugs/zofran
[5] U.S. Food and Drug Administration. (n.d.). Drugs@FDA. https://www.accessdata.fda.gov/scripts/cder/daf/index.cfm
[6] National Cancer Institute. (n.d.). Anti-Nausea Medicines. https://www.cancer.gov/about-cancer/treatment/side-effects/nausea/anti-nausea-drugs-pdq
[7] Mayo Clinic. (n.d.). Ondansetron (Oral Route, Parenteral Route). https://www.mayoclinic.org/drugs-supplements/ondansetron-oral-route-parenteral-route/side-effects/drg-20069503
[8] GoodRx. (n.d.). Ondansetron Prices, Coupons, and Patient Assistance Programs. https://www.goodrx.com/ondansetron