昂丹司琼片止吐药多长时间起效,用法用量是怎样的？

Ondansetron is a potent, selective and reversible 5-hydroxytryptamine (5-HT3) receptor blocker. Compared with metoclopramide, it has stronger antiemetic effect and no extrapyramidal effects. It can inhibit nausea and vomiting caused by chemotherapy and radiotherapy, and its bioavailability is about 60%. Ondansetron can also be used to prevent and treat nausea and vomiting after surgery. So, how long does it take for antiemetic ondansetron tablets to take effect and what is the dosage?

How long does it take for antiemetic ondansetron tablets to take effect?

How long ondansetron tablets are effective after use depends on the actual situation of different patients. Patients have different physiques and conditions, and the time and degree of curative effect after taking the drug are also different. Under the protection of the efficacy of ondansetron tablets, patients can normally complete the required courses of chemotherapy and radiotherapy and avoid obvious gastrointestinal reactions such as nausea and vomiting. It is recommended that patients use ondansetron under the guidance of a professional doctor based on their own conditions.

What is the dosage of ondansetron?

For vomiting caused by chemotherapy drugs that are not very emetic: Inject 8 mg of ondansetron injection intravenously 15 minutes before chemotherapy, and take 8 mg ondansetron tablets orally every 8 to 12 hours for 5 days; to prevent nausea and vomiting after surgery: Take 8 mg tablets (2 tablets) orally 1 hour before anesthesia, and then take them every 5 days. Take 8 mg tablets (2 tablets) orally twice every 8 hours; for vomiting caused by highly emetic chemotherapy drugs: Inject 8 mg ondansetron injection intravenously 15 minutes before chemotherapy, 4 hours, and 8 hours after chemotherapy. After stopping chemotherapy, take 8 mg ondansetron tablets (2 tablets) orally every 8 to 12 hours for 5 days. It is recommended that patients follow the doctor's instructions and do not change the dosage and usage at will to avoid serious adverse reactions.

During the course of taking ondansetron tablets, adverse reactions such as headache, abdominal discomfort, constipation, dry mouth, warm feeling in the upper abdomen, and rash may occur. Generally, the reactions are mild and do not require special treatment. Occasionally, bronchial asthma and allergic reactions may occur, and temporarily asymptomatic transaminase elevations may occur. The above is the content of how long it takes for antiemetic ondansetron tablets to take effect and how to use it.

Note: The above information comes from the Internet and is compiled and edited by Medical Companion Travel (please correct me if there are any errors or omissions). It is only to provide information on the latest drugs on the market in the world and help Chinese patients understand the latest international new drug trends. It is only for internal discussion among medical staff and does not serve as any basis for medication. For specific medication guidelines, please consult the attending physician.

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