Ondansetron Injection Uses – People may feel uneasy, nausea, or vomit due to an upset stomach or after having cancer treatment. Ondansetron is an anti-nausea and anti-vomiting medicine. It comes as a tablet and can be administered intravenously or subcutaneously. Ondansetron injection is also used to treat cancer patients with an unfavourable reaction to standard chemotherapy. So, if you want to know all about this medication, we are here to help. This article will go through the uses, price, advantages, and adverse effects of ondansetron injection.

Ondansetron Injection

Ondansetron works by inhibiting the effects of substances in the body that cause nausea and vomiting. It reduces nausea and vomiting triggered by chemotherapy or surgery for cancer patients. It is accessible without a prescription in most countries and is frequently used with other medications to treat severe vomiting and nausea. Ondansetron injection is also a pre-operative medication to induce vomiting in individuals before surgery. It is accessible as an injectable and is frequently administered to patients undergoing radiation treatment or operations. This medicine is also used to reduce postpartum nausea and vomiting.

Ondansetron Injection Uses/ Benefits

The primary function of ondansetron injection is to treat nausea and vomiting. It works by inhibiting serotonin receptors in the brain, so the user no longer feels nausea or vomiting. It alleviates nausea and vomiting induced by chemotherapy and other cancer therapies.

  • 1. An anti-nausea medicine that relieves both vomiting and nausea.
  • 2. Works quickly and effectively.
  • 3. Suitable for persons of all ages and has few adverse effects.
  • 4. Prevent or reduce the severity of postoperative nausea and vomiting.
  • 5. Given to people who are suffering from gastritis or peptic ulcer disease.
  • 6. It can be administered orally or parenterally (via the skin).
  • 7. Helps to keep the stomach stable and lowers appetite.
  • 8. Used to keep motion sickness at bay.

Causes of Ondansetron Injection

Some of the causes that induce the use of ondansetron injection are as follows:

  • 1. If you are experiencing chemotherapy-induced nausea and vomiting.
  • 2. If you have nausea and vomiting as a result of the procedure.
  • 3. In case of motion sickness when travelling.

Side Effects of Ondansetron Injection 

If you develop any of the following symptoms of an allergic response, get emergency medical attention: fever, rash, chills, difficulty breathing, and swelling in the lips, cheeks, throat, or tongue. Ondansetron has the potential to induce major adverse effects. See your physician right away if you notice any of the listed symptoms:

  • 1. Headache, dizziness, chest discomfort, fainting, and rapid heartbeats;
  • 2. Bloating or stomach discomfort
  • 3. A sense of light-headedness
  • 4. Blurred eyesight or temporary vision loss
  • 5. Severe constipation
  • 6. Urination issues
  • 7. Agitation, fever, hallucinations, rapid heart rate, nausea, hyperactive reflexes, vomiting, lack of coordination, diarrhea, and fainting are all symptoms of high serotonin concentration in the body.

Ondansetron Injection Price in India

Ondansetron injection treats nausea and vomiting induced by various factors, including cancer treatment and pregnancy. Ondansetron injectable prices in India vary depending on region and dose. This drug costs between Rs. 11 and Rs. 13 for each drip. The MRP for this remedy, however, is Rs. 13.10.

How does ondansetron injection work?

Ondansetron is an antiemetic drug. It acts by inhibiting the function of a chemical messenger within the brain (serotonin), which can provoke vomiting and nausea following surgery and even during treatment for cancer (like chemotherapy).

Ondansetron Injection Composition

Ondansetron injection is made up of a primary ingredient: ondansetron. Ondansetron is a medication that reduces nausea and vomiting by inhibiting serotonin receptors. This drug is accessible both orally and intravenously. It is available in both generic and branded versions and has several advantages, as mentioned above.

Dosage of Ondansetron Injection

Ondansetron injection dose varies based on the kind of cancer and the severity of nausea and vomiting. The dose varies based on the ailment being treated and the patient’s weight and age. A single dosage of ondansetron injection will suffice in most patients. However, several doses may be required if the nausea is severe or lasts for an extended period. Furthermore, if necessary, the dosages can be administered 4 hours following the first dosage and 8 hours following the first ondansetron dose.

  • 1. Dose Neglected:  You are unlikely to miss a dosage of ondansetron since you will be given it in a clinical environment. However, do not repeat the missed dose if the following dose is close by.
  • 2. Overdose: An overdose is uncommon because a healthcare expert administers ondansetron in a medical environment. Overdosing, on the other hand, may result in adverse effects such as dizziness, fainting, constipation, and irregular heartbeat. So, immediately see your doctor if you experience any of these side effects.


Inform your physician or healthcare provider if you have any of the following conditions to ensure that ondansetron is appropriate for you:

  • 1. Liver disease
  • 2. Congestive cardiac failure, heart illness, and heart rhythm problems are all heart problems.
  • 3. An electrolyte imbalance (for example, low magnesium or potassium levels in the blood)
  • 4. A familial or individual background of Long QT disorder; or
  • 5. A condition that requires the use of a “water pill” or diuretic.

Ondansetron is not believed to be harmful to a developing fetus. If you are expecting, breastfeeding, or nursing, ask your doctor before using this medication.

When to use ondansetron injection?

An ondansetron injection may be possible if you suffer from nausea and vomiting due to chemotherapy. It is a drug that inhibits the receptors in your brain that cause nausea and vomiting. Ondansetron injection is often administered intravenously (IV). It can also be administered orally; however, it is more effective when administered intravenously.

The severity of your symptoms determines the dose of ondansetron injection, typically lasting four to six hours. Ondansetron injectable side effects are normally moderate. However, they might include sleepiness, headache, dizziness, and sedation.

When not to use ondansetron injection?

  • 1. You must not take an ondansetron injection if you are intolerant to it or when you are using apomorphine (Apokyn) simultaneously. 
  • 2. It should not be used if the person has a history of seizures, heart difficulties, abnormal blood pressure readings, or renal problems.
  • 3. Furthermore, patients with certain mental health issues (such as depression or anxiety should avoid using ondansetron injections since it might worsen their condition.
  • 4. Finally, because of the potential negative effects in this age range, children under 12 should not be given this drug without first visiting a doctor.


Ondansetron Injection can cure motion sickness, nausea, severe vomiting, and severe episodes of butterflies in your stomach and diarrhea. However, this medication does have certain adverse effects. Some of these symptoms include dizziness or sleepiness. As a result, you are strongly advised to visit a doctor before using this drug for any ailment for which it has not been expressly prescribed. If you have concerns about using Ondansetron Injection, consult your doctor immediately and provide all essential information about your medical history and health problems.

Frequently Asked Questions

What is the use of injection ondansetron?

Ondansetron injection reduces nausea and vomiting from cancer medications (radiation or chemotherapy). This medication also serves to alleviate and cure vomiting and nausea following surgery.

Is ondansetron IM or IV?

Ondansetron injection is available as a solution that a healthcare professional would inject intramuscularly (IM) or intravenously (IV). It is often administered 30 minutes before the commencement of chemotherapy to avoid vomiting and nausea produced by the medication.

How is ondansetron IV given?

All intravenous dosages must be diluted in 50ml to100 ml of saline or another appropriate infusion solution before being injected over 15 minutes. The first 8 mg dosage may be accompanied by two further IV dosages of 8 mg, administered over 15 minutes and at least four hours.

Can Emeset be given IM?

Emeset Injection has been given for treating vomiting and nausea induced by chemotherapy, surgery, or radiation. Under the direction of a professional, it is administered as an injection within veins or as a drip.

Which injection is used for vomiting?

Metoclopramide injection is also prescribed to treat the condition (like vomiting, nausea, heartburn, loss of appetite, and a sense of fullness following meals) induced by gastroparesis in diabetic individuals.

Why is ondansetron given slowly?

The slow infusion of ondansetron injection over 2-5 minutes might reduce the occurrence of life-threatening side effects linked with ondansetron.

What happens if you provide ondansetron too quickly?

If you administer this drug quicker than suggested or take greater than the prescribed amount, you may experience significant adverse effects like clouded vision or irregular/ slowed heartbeat.

What should you look for before administering ondansetron?

Examine dizziness and sleepiness, which may impair walking, coordination, and other functional tasks. Inform the nursing staff and physician of any balance issues or functional restrictions, and advise the patient and their family/caregivers to avoid accidents and trauma.

Related Post

Deca Durabolin Injection Uses Dopamine Injection
Lipolysis Injection Deca Durabolin Injection
What Are The Usage Of Levocetirizine Tablets Painkiller Tablets for Hernia
Best Tablet for Piles Aceclofenac Tablet Uses
Follihair Tablet Uses O2 Tablets Uses 
Top 10 Piles Pain Relief Tablets Folvite Tablets Uses
Digene Syrup Uses Corex Syrup Uses
Follihair Tablet Uses Folvite Tablets Uses
Painkiller Tablets for Hernia Unienzyme Tablets Uses
Becosules Capsules Uses Levocetirizine Tablet Uses – Dosage and side effects
Dolo 650 Tablet Uses Best Ointment For Piles
Book Now Call Us