Ondansetron (Zofran)
A prescription anti-nausea medication sometimes added to GLP-1 therapy during the adjustment window.
Ondansetron blocks serotonin receptors in the gut and brainstem's nausea circuitry — developed for chemotherapy patients, now generic and widely used wherever nausea needs suppressing. Telehealth weight programs commonly keep it in the toolkit for patients whose early-dose nausea threatens adherence.
It's an adjunct, not a license: the goal is bridging adaptation weeks, not overriding a body that's signaling the dose climbed too fast — persistent reliance on it argues for slowing escalation instead. It has its own considerations (constipation, headache, interactions reviewed at prescribing), which is why it's a doctor's addition rather than a self-serve fix. Our programs handle such requests by message, no appointment needed.
This glossary entry is general information, not medical advice, and is written to be consistent with FDA prescribing information and primary trial publications as of its last review. Always consult a licensed healthcare provider for personal medical decisions.
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