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Author: Admin | 2025-04-28
Activity.What other drugs will affect ondansetron?Ondansetron can cause a serious heart problem. Your risk may be higher if you also use certain other medicines for infections, asthma, heart problems, high blood pressure, depression, mental illness, cancer, malaria, or HIV.Many drugs can affect ondansetron. This includes prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are listed here. Tell your doctor about all other medicines you use. Does ondansetron interact with my other drugs? Enter medications to view a detailed interaction report using our Drug Interaction Checker. Popular FAQHow long before a meal should you take ondansetron? If you are taking ondansetron for nausea that occurs with meals, then the standard tablet should be taken half an hour to 1 hour before meals, and the orally disintegrating tablet or oral soluble film can be taken 15 minutes before meals. However, if you are taking ondansetron for constant, all day nausea then it should be taken at regular intervals during the day as prescribed, with or without food.How often can you take ondansetron? You can take ondansetron more frequently initially, for example, if you are taking it to prevent or treat nausea of vomiting from chemotherapy you can take 4mg then follow up with another 4mg dose at 4 and 8 hours after the first dose. The following day you should only take it every 8 hours (3 times a day). If you continue taking ondansetron more frequently than this you are at higher risk of side effects such as constipation, headache, or heart effects.How long does ondansetron take to work? Oral ondansetron works quickly, usually within 30 minutes, but it can take up to two hours for the full effect. It’s taken before you receive medicines or procedures that might make you feel nauseous or cause vomiting. Oral doses are usually taken 30 minutes before chemotherapy, 1 hour before surgery, or 1 to 2 hours before radiation treatments. You may need extra doses. Your doctor will tell you exactly when to take your medication.Does ondansetron make you sleepy? Yes, ondansetron (Zofran) might make you feel sleepy or tired. Ondansetron injection for the treatment of post-operative nausea and vomiting has been reported to cause drowsiness or sedation in 8% of patients vs. 7% of those using a placebo (an inactive treatment). Malaise (generally feeling unwell) and fatigue (tiredness or lack of energy) have also been reported in 13% of patients (vs. 2% placebo) when it is used orally for the prevention of chemotherapy-induced nausea and vomiting.Can you take ondansetron while pregnant? Although ondansetron is not specifically approved by the FDA to treat nausea and vomiting during pregnancy (NVP), its use is common, and approximately 25% of pregnant women are prescribed ondansetron to treat NVP. Overall, studies show the use of ondansetron appears to be associated with an additional 3 instances of oral cleft defects (such as cleft lip or cleft palate) for every 10,000 women exposed to ondansetron during their first trimester. There may also be a very slight
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