Is ondansetron (Zofran) available over the counter in the United States?

Is Zofran Available Over the Counter?

No, ondansetron (Zofran) is not available over the counter in the United States and requires a prescription. 1

Prescription Status and Availability

• Ondansetron is a prescription-only medication that must be obtained through a healthcare provider 1
• The FDA-approved drug label does not indicate any over-the-counter availability 1
• Multiple formulations exist including oral tablets, orally disintegrating tablets, and injectable forms, all requiring prescription 1

Available Formulations (All Prescription-Only)

Oral formulations:

• 4 mg and 8 mg orally disintegrating tablets 1
• Standard oral tablets in various strengths 1
• Oral soluble film 2

Parenteral formulations:

• Injectable solution for intravenous administration 1, 3

Clinical Context

• Ondansetron is a selective 5-HT3 receptor antagonist used primarily for chemotherapy-induced nausea and vomiting 2
• It has expanded use in radiation-induced nausea, postoperative nausea and vomiting, and gastroenteritis in children 2, 4
• The medication requires medical supervision due to potential side effects including QT interval prolongation and the need for appropriate dosing based on clinical indication 1, 5

Important Prescribing Information

• Dosing varies significantly by indication (ranging from 4 mg to 24 mg depending on use) 2, 1
• The drug undergoes extensive hepatic metabolism and may require dose adjustments in patients with severe hepatic impairment 1
• Storage requirements specify controlled room temperature (20°-25°C) 1