Key takeaways
Ondansetron (Zofran) and dexamethasone (Decadron) are both prescription medications, but they serve different purposes and belong to different drug classes. Ondansetron is an antiemetic used to prevent nausea and vomiting after surgery or cancer treatments, while dexamethasone is a corticosteroid used to treat various inflammatory conditions, including allergies and autoimmune diseases. Ondansetron works by blocking serotonin receptors in the brain, whereas dexamethasone reduces inflammation by mimicking cortisol, a natural hormone. Ondansetron is available in multiple forms, including tablets, dissolvable tablets, and injections, and is typically taken multiple times a day. In contrast, dexamethasone is available as oral tablets, solutions, and injections, and its dosing can vary widely based on the condition being treated. Common side effects of ondansetron include headache and fatigue, while dexamethasone can cause trouble sleeping, weight gain, and higher blood sugar levels. Additionally, long-term use of dexamethasone can lead to more severe side effects like weakened bones and increased infection risk.
