Ondem Syrup Uses, Side Effects, Doses, and Benefits

Ondem Syrup: Uses, Side Effects, Doses, and Benefits

Ondem Syrup is a prescription medication. It is commonly taken for nausea and vomiting. Vomiting can be due to Chemotherapy, radiation therapy, surgical procedures, or nausea and vomiting caused by stomach or intestinal illnesses. Usually, the Ondem syrup is for young children. prescribed to children while the Ondem tablets are prescribed to children in ages 6 months to 12 years

Working Of Ondem Syrup 

The syrup contains an active ingredient called Ondansetron, which selectively targets and reduces Serotonin production in the body by reducing the activity of serotonin (5-HT3) receptors. 

Reducing the activity of these receptors stops not only the trigger for nausea and vomiting but also the reflex action involved in vomiting. 

What Is The Dosage Of The Ondem Syrup?

The dosage is decided by a healthcare professional. It varies from individual to individual and from case to case. 

The dosage and the timing carries from case to case. As a part of chemotherapy treatment, the patient takes it 30 minutes before the therapy. For radiation therapy, the patient takes 1-2 hours before the radiation therapy or 1 hour before the surgery.  

In the case of a child, it depends on the age, weight, and medical condition. 

A healthcare professional determines the dosage of Ondem Syrup based on the child’s age, weight, and medical condition. 

It is important to follow the doctor’s specific instructions about Ondem Syrup. If there is vomiting within 30 minutes of taking the medication, consult your doctor.

What Are The Side Effects Of Ondem Syrup? 

Some of the most common side effects of Ondem Syrup are as follows- 

  • Headache
  • Constipation 
  • Diarrhea 
  • Dizziness 
  • Fatigue

Usually, these side effects are mild and may resolve on their own. However, if they persist or become bothersome, consult a healthcare professional. 

What Are The Precautions One Should Take Concerning Ondem Syrup?

While Ondem Syrup is effective in managing nausea and vomiting, it should not be used if, 

  • The child is allergic to any component of the syrup. 
  • The patient suffers from liver conditions. Please consult your doctor about this. 
  • The medication can cause electrolyte imbalance in the body. This can put the patient at an increased risk of heart rhythm problems.

Ondem Syrup Drug Interactions

Make sure that your healthcare provider is aware of all the medications you or the patient is taking. Ondem syrup interacts with some medications. These drug interactions can increase the risk of side effects of Ondem syrup or affect the efficacy of the medication. Some of the medications with which it interacts are – 

  • Phenytoin
  • Carbamazepine
  • Tramadol

Storage Of Ondem Syrup 

Choose a cool, dark, and dry place to store the syrup. It should be stored out of reach of children.

What Are The Benefits Of Ondem Syrup?

Some of the benefits of this syrup are 

  • This medication starts to have effect within 30 minutes to 2 hours of the patient taking it.
  • Ondem syrup is effective at treating nausea and vomiting in various medical conditions. sometimes prescribed off-label to manage motion sickness.

Expert Advice On Ondem Syrup 

This syrup only helps manage the symptoms of nausea and vomiting. It does not resolve the root cause of vomiting. Due to this Ondem syrup is used in combination with other medications that are a part of the patient’s treatment plan. While Ondem Syrup controls the symptoms of nausea and vomiting, it does not treat the underlying cause. Therefore, it is important to follow the doctor’s advice. 

Frequently Asked Questions

Ques. Is Ondem syrup an over-the-counter medication?

Ans. No, this medication on only given on prescription.

Ques. How should I take Ondem syrup?

Ans. Take Ondem Syrup as your doctor has directed. The dosage and the timing will depend upon what is the underlying cause of nausea.

Ques. Can I take Ondem syrup on an empty stomach?

Ans. Yes, Ondem syrup can be taken with or without food. Follow your doctor’s instructions.

Ques. Can a pregnant woman take ondem syrup? 

Ans. Ondem Syrup should not be taken during pregnancy, especially during the first trimester. If taken during the first trimester, this medication can result in the child being born with cleft lip and/or cleft palate.

Ques. Can a breastfeeding mother take ondem syrup?

Ans. Ondem passes into breast milk in small amounts. Consult your doctor before using it while breastfeeding.

Ques. What is the shelf life of Ondem syrup? 

Check the expiry date on the packaging. Do not use it past the expiration date.

Ques. Can patient take Ondem syrup for motion sickness?


The patient does not take it for motion sickness usually, but some medical professionals prescribe it for off-label use to treat nausea and vomiting resulting from motion sickness.

Disclaimer: We are not any professional experts in the medical field and we write all the information after researching on the internet. The motive of this blog is to provide information about this medicine. Before taking any action regarding the use of Ondem Syrup, please consult and seek guidance from a qualified doctor. Do not rely solely on the information provided here.

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