EMITINO (Ondansetron) 4MG is an over-the-counter medication used to prevent nausea and vomiting caused by chemotherapy, radiation therapy, or surgery. It belongs to a class of drugs known as serotonin 5-HT3 receptor antagonists, which work by blocking the action of serotonin, a natural substance in the body that can trigger nausea and vomiting. EMITINO is available in tablet form and is taken orally as needed. This medication is highly effective in managing nausea and vomiting associated with various medical treatments.