Uses of Zofran for Kids - Verywell Health
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Zofran (ondansetron) can be used in emergency situations to treat severe vomiting and diarrhea in children with acute gastroenteritis (stomach flu). It's also a drug commonly used to prevent severe nausea and vomiting in people undergoing cancer chemotherapy or radiation therapy.
Zofran doesn't treat stomach flu but can help prevent dehydration, which can become very serious very quickly in babies and younger children.
This article describes how Zofran is used in kids as well as the possible side effects, risks, and contraindications. It also lists some of the other medications that can be used to treat nausea and vomiting in children with stomach flu.
Uses of Zofran for Kids
Zofran is approved for the prevention of nausea and vomiting in people undergoing chemotherapy or radiation. It is also approved to prevent postoperative (post-surgical) nausea and vomiting.
Even so, Zofran is often prescribed off-label due to its potent antiemetic (anti-nausea) effects. This includes the treatment of severe vomiting in children with gastroenteritis. It is typically used in emergency room settings as the last resort when vomiting poses a risk of severe dehydration.
Dehydration is a dangerous loss of body fluid that can lead to complications like seizures, kidney failure, and shock if the fluid loss is severe. Because kids have smaller body sizes, dehydration and its complications can both develop rapidly.
Zofran can be also used to support oral rehydration therapy (ORT) in babies and children with severe diarrhea and vomiting. ORT involves drinking water with modest amounts of sugar and salts to replenish lost body fluids. Studies have shown that Zofran can help children keep oral fluids down rather than vomiting them up.
Outside of its approved uses, Zofran is only used in emergency situations when the benefits outweigh the potential risks.
Side Effects
As with all medications, Zofran may cause side effects. Because the drug is delivered in a hospital setting for a short amount of time, the side effects tend to be manageable.
Possible side effects of Zofran include:
- Headache
- Abdominal pain
- Diarrhea or constipation
- Feeling tired
- Blurred vision
- Rash
- Feeling dizzy
Seek immediate medical care if your baby or toddler experiences the signs and symptoms of severe dehydration, including:
- Crankiness or irritability
- Dry skin, tongue, and lips
- Rapid breathing
- Fewer wet diapers
- Tearless crying
- Sunken eyes
- Dizziness or drowsiness
Risks and Contraindications
While the benefits of Zofran in emergency situations usually outweigh the risks, it is nevertheless used with caution in children with severe diarrhea as it can sometimes make it worse. This is especially true in cases of severe stomach flu where other treatment options may need to be explored.
Zofran can also cause irregular heart rhythms and should never be used in children with a known heart condition. The same applies if a child is experiencing irregular heartbeats as a result of dehydration, which is not uncommon in severe cases.
Zofran has been studied in children as young as three months. Even so, clinical judgment and experience are needed to ensure that it is used appropriately, particularly in children under the age of two years.
Dosage
Zofran is available in an oral tablet, dissolvable tablet, oral solution, and an intravenous (IV) solution.
In emergency situations, intravenous Zofran solution is delivered either as a slow injection (in not less than 30 seconds) or an IV drip over 15 minutes. The dosage in milligrams varies by the weight of the child in kilograms (mg/kg).
If your child misses a dose, give the dose as soon as you can. Never give a double dose, no matter how much time has passed since the previous once. If your child misses two doses, call a healthcare provider for the next steps.
How Long Does It Take for Zofran to Work?
Zofran generally reaches its peak effectiveness within one to two hours. To prevent nausea from radiation treatment, take Zofran one to two hours before treatment. To prevent nausea after surgery, take Zofran one hour before the surgical procedure.
Alternatives to Zofran
Zofran is not the only option for treating severe vomiting in children with stomach flu. In fact, other options may be recommended well before Zofran is even considered. These include:
- Antivert (meclizine)
- Dramamine (dimenhydrinate)
- Reglan (metoclopramide)
- Stemetil (prochlorperazine)
Antivert and Dramamine are available over the counter and by prescription. Reglan and Stemetil are available by prescription only (although there is a version of Stemetil called Buccastem M that is available over the counter).
Speak with your child's pediatrician before using any medication to treat your child's vomiting or diarrhea.
Natural Remedies to Treat Nausea
Natural remedies to treat nausea are a good option for when the nausea is mild or the child is waiting for another nausea medication to kick in.
Natural and alternative remedies to treat nausea include:
- Ginger: Let your child suck on ginger or offer them some clear tea with ginger in it. Make sure to offer real ginger, as artificial ginger flavoring will not help.
- Peppermint: Try giving the child peppermint candy or peppermint gum. Peppermint tea may also be helpful.
- Drinking more water: Make sure the child is drinking enough water throughout the day to prevent hydration and help settle their stomach. Encourage them to take small sips rather than big gulps.
- Distraction: Finding distractions such as allowing them to play a video game, work on a puzzle, or another fun activity can sometimes keep their mind off of the nausea.
Any of these can be used along with nausea medications without the risk of side effects.
Summary
Zofran (ondansetron) is a medication used to treat severe vomiting and diarrhea in children with the stomach flu. It may also be used to treat nausea and vomiting related to cancer treatment. Zofran typically starts to work within one to two hours after taking it.
Common but short-term side effects include dizziness, fatigue, and headache. Zofran should never be used in children with a known heart condition. If your child is vomiting or has diarrhea, make sure they take sips of water throughout the day to prevent dehydration.
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