To prevent nausea after surgery, take ondansetron by mouth 1 hour before the start of surgery. Pour ONE (1) 6 ounce bottle of Suprep into the supplied mixing cup; add cold drinking water or berry flavored Propel water to the 16 ounce fill line on the mixing cup. If you take the tablets out of the blister pack they may not keep well. The standard tablets that are swallowed will start to work within half an hour to 2 hours. Do not take Ondansetron SZ ODT orally disintegrating tablets if the packaging is torn or shows signs of tampering. Do not take Zofran Zydis wafers if you have ever had an allergic reaction to ondansetron or any of the ingredients listed at the end of this leaflet. Ondansetron works in the stomach to block the signals to the brain that cause nausea and vomiting. Check your prescription label and ask your doctor or pharmacist if you have questions. Additional doses are sometimes taken one to three times a day during chemotherapy or radiation therapy and for 1 to 2 days after the end of treatment. Also, how long after the expiration date is medication good for? How to take ondansetron. Answer. Stir contents. Do not take Ondansetron ODT GH orally disintegrating tablets if you have ever had an allergic reaction to ondansetron or any of the ingredients listed at the end of this leaflet. It will give you more information about ondansetron, and it will also provide you with a full list of the side-effects which you could experience from taking it. Zofran (ondansetron) begins to work within about 30 minutes. Before you start the treatment, read the manufacturer's printed information leaflet from inside the pack. Do not take Ondansetron SZ ODT orally disintegrating tablets after the expiry date (EXP) printed on the pack. The injectable form of ondansetron may vary. Ondansetron HCl is an antiemetic drug, used to treat nausea or vomiting resulting from severe illness, such as food poisoning, and medications that may cause vomiting, like opioids, anesthetics, and chemotherapy drugs. It reaches peak blood concentrations in about 2 hours. Ondansetron is available in 4 mg, 8 mg, 24 mg tablets. Contact your doctor at once if you experience signs of an allergic reaction such as skin rash, itching, difficulty breathing, or swelling of the face and throat. Tell your doctor if you also use: medicine to treat depression; medicine to treat a psychiatric disorder; a narcotic medication; or; medicine to prevent nausea and vomiting. Ondansetron is used to prevent nausea and vomiting that is caused by cancer medicines (chemotherapy) or radiation therapy. Ondansetron Nausea: 28 May 1996 Zofran and Compazine make it so that nausea can be easily Generally I start about 3 hours after chemo and take them for about 2-3 days. If you vomit within 30 minutes of taking Zofran, repeat the dosage. i have taken 4-5 daily.. well every 4-6 hours. ONDANSETRON (on DAN se tron) is used to treat nausea and vomiting caused by chemotherapy. 1 doctor answer. Nausea meds - decadron, compazine, Zofran..any experiences Afterwards I take Emend, Zofran and Compazine. Symptoms of an allergic reaction may be mild or severe. Also, who can take ondansetron? It is also used to prevent or treat nausea and vomiting after surgery. Does taking ondansetron in pregnancy cause long-term problems in behavior or learning for the baby? Take the ondansetron even if you are not feeling sick. This medicine is available only with your doctor's prescription. One study looked at 78 infants who were exposed to ondansetron at any time during pregnancy. It is also used to prevent nausea and vomiting that may occur after surgery. Severe Interactions. The medication was developed by GlaxoSmithKline® in the 1980s and many markets had access to it by the 1990s. Information About Zofran Dosing And Use. In fact, Zofran (ondansetron) can be taken safely with most antibiotics and co-administration is often recommended in certain situations, especially if you are having a tough time tolerating your antibiotic. Can I take other medicines with ondansetron? Zofran is often prescribed every 8 hours as needed for a maximum of 24 mg per day. Ondansetron comes as a tablet, a rapidly disintegrating (dissolving) tablet, film, and an oral solution (liquid) to take by mouth. Medication should never be administered without first consulting ⦠Do not take Ondansetron Mylan ODT orally disintegrating tablets if you have ever had an allergic reaction to ondansetron or any of the ingredients listed at the end of this leaflet. 4. 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