
Ondem Syrup
Ondansetron (2mg/5ml)
by Alkem Laboratories Ltd
bottle of 30 ml Oral Solution
About this medicine
Ondem Syrup is a medicine given to children to help treat nausea and vomiting. It is mainly given to treat nausea and vomiting associated with surgery, chemotherapy, radiotherapy, and stomach/intestinal infection. It also helps treat vomiting that is caused as a side effect of medicines like painkillers. Ondem Syrup may be given before or after meals. To control vomiting caused due to chemotherapy, give this medicine to your child 30 minutes before the procedure. Give it 1 to 2 hours before a radiotherapy session and 1 hour before surgery to prevent your child from vomiting post these procedures. If your child expels out the medicine within 30 minutes of the intake, help your child calm down and repeat the dose. Do not double dose if it is already time for the next dose. Ondem Syrup may cause some temporary side effects such as headache, constipation, diarrhea, and fatigue. These side effects usually subside once your child’s body adapts to the medicine. In case these side effects persist or become bothersome, do reach out to the doctor on a priority basis. Let the doctor know about all the medicines your child is taking, including painkillers, antibiotics, or medicines taken to treat depression. Also, inform the doctor if your child has a history of liver problems, kidney malfunction, blockage in the gastrointestinal tract, heart problems, or allergies to any medicine, its ingredients, or a food product. This information is very important for dose alterations and for planning your child’s overall treatment.
Uses
- Vomiting
- Treatment of Nausea
Benefits
In treatment of Nausea
Ondem Syrup blocks the action of chemicals in the body that can make you feel or be sick. It is often used to prevent nausea and vomiting that may be caused by cancer chemotherapy and radiation treatment (in adults and children aged 4 years and older). It is usually taken both before and after chemotherapy or radiation. This medicine helps you recover more comfortably from these treatments. It is also effective at preventing nausea and vomiting after an operation (in adults only). The dose will depend on what you are being treated for but always take this medicine as it is prescribed.
How it works
During radiotherapy, chemotherapy, abdominal infection, or any major surgeries, the dead cells in the body start releasing a chemical called serotonin directly into the blood. Later, this stimulates special centers in the body that are responsible for inducing vomiting in your child. Giving Ondem Syrup just before the procedure helps block the effect of this chemical on vomiting centers of the brain and prevents vomiting.
How to use
Take this medicine in the dose and duration as advised by your doctor. Check the label for directions before use. Measure it with a measuring cup and take it by mouth. Shake well before use. Ondem Syrup may be taken with or without food, but it is better to take it at a fixed time.
Common side effects
- Constipation
- Diarrhea
- Fatigue
- Headache
Safety advice
- KidneySAFE IF PRESCRIBED
- Ondem Syrup is safe to use in patients with kidney disease. No dose adjustment of Ondem Syrup is recommended.
- LiverCAUTION
- Ondem Syrup should be used with caution in patients with liver disease. Dose adjustment of Ondem Syrup may be needed. Please consult your doctor. In severe liver disease, do not exceed the prescribed dose and consult your child’s doctor.
If you miss a dose
Do not panic. Give the missed dose as soon as you remember. However, you must skip the missed dose if it’s almost time for the next dose. Do not give a double dose and follow the prescribed dosing schedule.
Quick facts
- Chemical Class
- Carbazole Derivative
- Habit Forming
- No
- Therapeutic Class
- Gastro intestinal
Frequently asked questions
What is Ondem Syrup used for?
Ondem Syrup is generally given before any major surgery or before chemotherapy and radiotherapy sessions. In case your child is about to undergo any of the above procedures, the doctor may ask you to give Ondem Syrup to your child to prevent vomiting post-procedure. Apart from this, Ondem Syrup is also found useful in treating vomiting caused due to diseases of the stomach. In such a case, your child’s doctor may prescribe giving Ondem Syrup to your child for a few days. Stick to the dose for best results.
What if my child takes too much Ondem Syrup?
Ondem Syrup is unlikely to cause harm if you give an extra dose by mistake. However, you must still speak to your child’s doctor immediately. Sometimes, excessive intake of Ondem Syrup can cause some serious side effects like excess sleepiness, agitation, rapid heartbeat, hypertension, flushing, dilated pupils, sweating, involuntary muscle jerk, uncontrolled eye movements, overactive reflexes, and seizures. These symptoms are collectively known as serotonin syndrome. If any of these appear, consult the doctor without any delay.
How should Ondem Syrup be stored?
Ondem Syrup should be stored at room temperature, in a dry place, away from direct heat and light. Also, keep all the medicines out of the reach and sight of children to avoid any accidental intake.
Can other medicines be given at the same time as Ondem Syrup?
Ondem Syrup can sometimes interact with other medicines or substances. Tell your doctor about any other medicines your child is taking before starting Ondem Syrup. Also, check with your child’s doctor before giving any medicine to your child.
In what conditions do I need to call my child’s doctor right away?
Call your child’s doctor immediately if your child develops symptoms of serotonin syndrome like irregular heartbeat, green-colored vomiting, inability to pass wind, pale skin and eyes, dark-colored urine, restlessness, and insomnia.
My child is having a migraine and is on medication. Can I give Ondem Syrup along with it?
Avoid combining Ondem Syrup with such medicines because concomitant use of Ondem Syrup with medicines meant to treat depression or migraine results in serotonin syndrome. Consult your child’s doctor before giving any medicine to your child.
Product details
- Manufacturer
- Alkem Laboratories Ltd
- Salt composition
- Ondansetron (2mg/5ml)
- Pack
- bottle of 30 ml Oral Solution
- Dosage form
- Syrup
- Storage
- Store below 30°C
Same salt, other brands
Therapeutically equivalent. Ask your doctor or our pharmacist before substituting.
The content above is for information only and is not a substitute for professional medical advice, diagnosis or treatment. Always consult a registered medical practitioner before starting, stopping or changing any medicine.

