Readers ask: How much ondansetron can i take?

How much ondansetron can I take at once?

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. For those ages 4 to 11, patients should take a 4-mg tablet or rapidly disintegrating tablet or 5 mL of liquid three times per day.

How much Zofran can I take in 24 hours?

The total dose over 24 hours (given as divided doses) must not exceed adult dose of 32 mg. a The intravenous dose must not exceed 8 mg. b The total dose over 24 hours (given as divided doses) must not exceed adult dose of 32 mg.

Can I take 2 ondansetron 8mg?

Adults, teenagers, and children 12 years of age—At first, one 8milligram (mg) film taken 30 minutes before starting cancer treatment. The second 8mg film is taken 8 hours after the first dose. Then, one 8mg film is taken two times a day (every 12 hours) for 1 to 2 days.

How long does it take for ondansetron to work?

Ondansetron for nausea and vomiting sickness. Ondansetron is an anti-sickness medicine. It will start to work within 1-2 hours. The most common side-effects are a headache, constipation, and feeling flushed.

Can I take ondansetron every 4 hours?

The 4-mg dose is taken again 4 and 8 hours after the first dose. Then, the dose is 4 mg every 8 hours for 1 to 2 days. Children younger than 4 years of age—Use and dose must be determined by your doctor.

Who should not take Zofran?

You should not use Zofran if you are allergic to ondansetron or to similar medicines such as dolasetron (Anzemet), granisetron (Kytril), or palonosetron (Aloxi). Zofran orally disintegrating tablets may contain phenylalanine. Tell your doctor if you have phenylketonuria (PKU).

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Is Zofran used for anxiety?

Zofran (ondansetron) and Compazine (prochlorperazine) are prescribed for the treatment of nausea and vomiting. Zofran is often used to prevent and treat nausea and vomiting during chemotherapy and after surgery. Compazine is also used to treat psychotic disorders such as schizophrenia and anxiety.

How long does Zofran last in your system?

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.

What is ondansetron 4 mg used for?

Ondansetron is used to prevent nausea and vomiting caused by cancer chemotherapy, radiation therapy, and surgery. Ondansetron is in a class of medications called serotonin 5-HT3 receptor antagonists. It works by blocking the action of serotonin, a natural substance that may cause nausea and vomiting.

Which is better domperidone or ondansetron?

This study concluded that ondansetron is more efficacious than domperidone is cessation of vomiting associated with AGE and no or mild-to-moderate dehydration in children of age three months to five years.

Does ondansetron stop vomiting?

Ondansetron is a highly potent antiemetic drug that is effective in preventing chemotherapy-and radiation-induced nausea and vomiting with a very low risk of adverse effects. Recently, ondansetron has been used to control vomiting related to acute gastroenteritis.

When should I take ondansetron 4mg?

To prevent nausea from radiation treatment, take this medication by mouth 1 to 2 hours before the start of your treatment. To prevent nausea after surgery, take ondansetron by mouth 1 hour before the start of surgery. This medication may be taken with or without food.

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Does Zofran calm you down?

Ondansetron (16 microg/kg twice daily) showed greater therapeutic efficacy at alleviating symptoms of overall mood disturbance, fatigue, vigor, confusion/bewilderment, and depression among EOA compared with LOA. EOA-associated improvements in mood disturbance seemed to be independent of drinking behavior.

Can you take ondansetron on an empty stomach?

Ondansetron can be taken with or without food. The first dose of ondansetron is usually taken before the start of your surgery, chemotherapy, or radiation treatment. Follow your doctor’s dosing instructions very carefully. Take the ondansetron regular tablet with a full glass of water.

When is the best time to take Zofran?

How to use Zofran. To prevent nausea from chemotherapy, take this medication by mouth usually within 30 minutes before treatment begins. To prevent nausea from radiation treatment, take this medication by mouth 1 to 2 hours before the start of your treatment.

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