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Dosage
Dosage Strengths
Ondansetron Tablet (Each) †4 mg
† commercial product
About
Ondansetron Tablets are a medication commonly used to prevent and treat nausea and vomiting. It is especially helpful for individuals undergoing chemotherapy, radiation therapy, or surgery. The tablets work quickly to reduce symptoms and improve comfort, allowing patients to better tolerate treatments. Ondansetron is often prescribed when other anti-nausea methods have proven ineffective and should be used as directed by a healthcare provider.
Mechanisms of Action
It specifically targets serotonin receptors located in the gastrointestinal tract and the brain’s vomiting center. By inhibiting the signals that initiate the nausea response, it helps prevent the sensation of nausea and reduces the likelihood of vomiting, providing relief during treatments that commonly cause these symptoms.
Contraindications & Precautions
Ondansetron should not be used by individuals with known hypersensitivity to the medication or any of its ingredients. Caution is advised in people with liver disease, heart rhythm disturbances, or electrolyte imbalances, as the drug can affect heart function. It is important to inform your doctor about any other medical conditions, including a history of irregular heartbeat or gastrointestinal issues. The medication should be taken exactly as prescribed to avoid complications.
Interactions
This medication may interact with other drugs that affect the heart, such as antiarrhythmics or certain antibiotics. Combining ondansetron with medications that prolong the QT interval may increase the risk of heart rhythm problems. It can also affect the way some antidepressants, pain relievers, or seizure medications work. Always inform your healthcare provider about all other treatments, supplements, and herbal products you are taking to ensure safe and effective use.
Adverse Reactions / Side Effects
Some people may experience dry mouth or a temporary change in taste. Rare but more serious side effects include heart palpitations, fainting, or allergic reactions such as rash, swelling, or difficulty breathing. If any unusual or severe symptoms occur, medical attention should be sought immediately. Staying hydrated and following the prescribed dosage can help reduce the likelihood of side effects.
Pregnancy & Breastfeeding
Ondansetron should be used during pregnancy only when clearly needed and prescribed by a healthcare provider, as the effects on the developing fetus are still being studied. It is essential to weigh the benefits against potential risks before use. While small amounts may pass into breast milk, breastfeeding mothers should consult their doctor before taking this medication to ensure it is safe for the baby and does not interfere with feeding or development.
Storage
Store this medication at 68°F to 77°F (20°C to 25°C) and away from heat, moisture and light. Keep all medicine out of the reach of children. Throw away any unused medicine after the beyond use date. Do not flush unused medications or pour down a sink or drain.
