Can you take Zofran twice?
Adults typically take one 8-mg tablet or rapidly disintegrating tablet or 10 mL of liquid twice a day. For patients ages 12 and older, the dosage is the same as for adults.
Can I take 8 mg of Zofran for nausea?
For prevention of nausea and vomiting after radiation treatment: Adults—At first, 8 milligrams (mg) taken 1 to 2 hours before radiation treatment. Then, the dose is 8 mg every 8 hours. Children—Use and dose must be determined by your doctor.
Is it bad to take a lot of Zofran?
Abnormal Heart Rhythms Zofran can cause QT interval prolongation and a potentially fatal heart rhythm called torsades de pointes. Serotonin Syndrome Larger doses of Zofran or using the medication in combination with other drugs can cause a dangerous rise in serotonin levels.
How long does 2mg of Zofran last?
Zofran (ondansetron) lasts about eight hours. It begins to work quickly and reaches peak concentration in about two hours. To prevent nausea, the dose is usually repeated eight hours after the first one. Some people continue this Zofran dosage for 1 to 2 days following chemotherapy or radiation.
How often can I take Zofran 8 mg for nausea?
Adults—One 8-milligram (mg) film three times a day. Children—Use and dose must be determined by your doctor.
How long does ondansetron 8mg take to work?
Zofran (ondansetron) begins to work within about 30 minutes. It reaches peak blood concentrations in about 2 hours. Zofran’s effects can last 8 to 12 hours. The Zofran dosage varies depending on the severity and cause of the nausea and vomiting.
How do you take Zofran 8 mg?
The 8-mg dose is taken again 8 hours after the first dose. Then, the dose is 8 mg every 12 hours for 1 to 2 days. Children 4 to 11 years of age—At first, 4 mg taken 30 minutes before starting cancer treatment. The 4-mg dose is taken again 4 and 8 hours after the first dose.
Can I take more than 8 mg of Zofran?
Zofran should be administered immediately before chemotherapy as a single intravenous dose of 5 mg/m2. The single intravenous dose must not exceed 8 mg.
Can I take Zofran 8 mg every 4 hours?
Zofran should be administered immediately before chemotherapy as a single intravenous dose of 0.15 mg/kg. The single intravenous dose must not exceed 8 mg. Two further intravenous doses may be given in 4-hourly intervals. Oral dosing can commence 12 hours later and may be continued for up to 5 days (Table 2).
Can you still throw up after taking Zofran?
If you vomit within one hour taking your first Zofran Tablet of each course prescribed to you, you should take the same dose again. If you continue to vomit, tell your doctor.
How quickly does ondansetron work?
Ondansetron should start to work within 30 minutes to an hour. Ondansetron tablets are available in two different forms – tablets or oral disintegrating tablets (also called ODT). Tablets: swallow the tablets with a glass of water. Do not halve or crush the tablets.
What is maximum daily dose of Zofran?
The recommended adult intravenous dosage of ZOFRAN is three 0.15-mg/kg doses up to a maximum of 16 mg per dose [see CLINICAL PHARMACOLOGY]. The first dose is infused over 15 minutes beginning 30 minutes before the start of emetogenic chemotherapy.
How much Zofran is too much?
In patients with severe hepatic impairment (Child-Pugh score of 10 or greater), do not exceed a total daily dose of 8 mg [see Use in Specific Populations (8.6), Clinical Pharmacology (12.3)]. Do not attempt to push ZOFRAN ODT tablets through the foil backing. With dry hands, PEEL BACK the foil backing of 1 blister and GENTLY remove the tablet.
Is Zofran bad for You?
Zofran can cause a serious heart problem, especially if you use certain medicines at the same time, including antibiotics, antidepressants, heart rhythm medicine, antipsychotic medicines, and medicines to treat cancer, malaria, HIV or AIDS. Tell your doctor about all medicines you use, and those you start or stop using during your treatment.
How often can you take Zofran?
Zofran is often prescribed every 8 hours as needed for a maximum of 24 mg per day. Zofran takes about 75 minutes to reach peak effect via the oral route and has a half-life of about 3-6 hours. Spreading out the dose by at least 8 hours is generally recommended.