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Description
Onset 4 MG Tablet is an antiemetic medicine. It is used for the treatment and prevention of nausea and vomiting associated with surgery, radiation treatment (the use of high-energy radiation to destroy cancer cells), or the use of anti-cancer medications. This medicine works by blocking the action of a chemical substance that causes nausea or vomiting.
Onset 4 MG Tablet can cause side effects like headache, constipation, sleepiness, tiredness, etc. Consult your doctor if these side effects persist or worsen.
Onset 4 MG Tablet may be taken with or without food. Take the medicine as instructed by your doctor. Avoid taking more or less than the recommended dose. Do not stop taking this medicine without consulting your doctor, as your symptoms may reoccur or worsen.
Onset 4 MG Tablet is not recommended if you are allergic to it. Inform your doctor about your current medications and existing medical conditions. This will help your doctor adjust the dose to avoid undesired effects. If you are pregnant or breastfeeding, consult your doctor before taking this medicine.
QUICK LINKS:
Substitutes
List of substitutes for Onset 4 MG Tablet
Glendan 4 MG Tablet
Glenmark Pharmaceuticals Ltd.
Omniset 4 MG Tablet
Cipla Ltd.
Ondem Of 4 MG Tablet
Alkem Laboratories Ltd.
Ondet 4 MG Tablet
Neuron Pharma Pvt. Ltd.
Setronem 4 MG Tablet
Strides Shasun Ltd.
Side effects
Major & minor side effects for Onset 4 MG Tablet
Headache
Constipation
Tiredness
Dry mouth
Fast or slow or irregular heartbeat
Dizziness
Drowsiness
Uses of Onset 4 MG Tablet
What is it prescribed for?
Chemotherapy or Radiation therapy induced nausea and vomiting
Chemotherapy is the use of medicines to destroy cancer cells. It usually works by keeping the cancer cells from growing, dividing, and making more cells. Radiation therapy (also called radiotherapy) is a cancer treatment that uses high-energy radiation to destroy cancer cells. Onset 4 MG Tablet is used to prevent nausea and vomiting associated with chemotherapy or radiation therapy.
Post operative nausea and vomiting
Postoperative nausea or vomiting is the feeling of being sick after a surgical procedure. Onset 4 MG Tablet may also be used to prevent nausea and vomiting associated with surgeries.
Concerns
Commonly asked questions
How long does it take for this medicine to take effect?
The effect of Onset 4 MG Tablet can be observed within 30 minutes to an hour.How long do the effects of this medicine last?
The effect of Onset 4 MG Tablet lasts for approximately 8-12 hours.Is it safe to consume alcohol while taking this medicine?
Interaction with alcohol is unknown. It is advisable to consult your doctor before consumption.Is this a habit forming medicine?
No habit-forming tendencies were reported for Onset 4 MG TabletCan this medicine be taken during pregnancy?
Onset 4 MG Tablet should be used during pregnancy upon your doctor's recommendation.Can this medicine be taken while breast-feeding?
It is not known whether Onset 4 MG Tablet passes into breastmilk. Hence consult your doctor before taking this medicine if you are breastfeeding.
Allergy
Onset 4 MG Tablet is not recommended if you are allergic to it. Seek immediate medical attention if you notice any symptoms such as skin rash, itching/swelling (especially of your face/tongue/throat), severe dizziness, breathing difficulty, etc.
Apomorphine
Apomorphine is a medicine used to treat symptoms of Parkinson's disease (a nervous system disorder that causes difficulties with movement, muscle control, and balance). The combined use of Onset 4 MG Tablet and Apomorphine is not recommended due to the risk of lightheadedness, loss of consciousness, and low blood pressure.
Warnings for special population
Pregnancy
Onset 4 MG Tablet should be used during pregnancy upon your doctor's recommendation.
Breast-feeding
It is not known whether Onset 4 MG Tablet passes into breastmilk. Hence consult your doctor before taking this medicine if you are breastfeeding.
General warnings
Electrolyte imbalances
Onset 4 MG Tablet should be used with caution if you have low levels of potassium or magnesium in the blood as it may cause undesired effects. Your doctor may correct such conditions before starting the treatment with this medicine.
Other medicines
Onset 4 MG Tablet may interact with certain medicines and cause undesired effects. Hence, it is advised that you inform your doctor about all your current medicines, including any herbs and supplements, before beginning treatment with this medicine.
Overdose
Seek emergency medical treatment in case of an overdose of Onset 4 MG Tablet.
All drugs interact differently for person to person. You should check all the possible interactions with your doctor before starting any medicine.
Interaction with Alcohol
Description
Interaction with alcohol is unknown. It is advisable to consult your doctor before consumption.
Instructions
Interaction with alcohol is unknown. It is advisable to consult your doctor before consumption.
Interaction with Medicine
Amitriptyline
Phenytoin
Tramadol
Amiodarone
Apomorphine
Carbamazepine
Disease interactions
QT Prolongation
Onset 4 MG Tablet may cause a heart rhythm problem called QT prolongation. This may result in fast, rapid, and irregular heartbeats. Hence this medicine should be used with caution if you have heart conditions, electrolyte abnormalities (when the levels of electrolytes in your body are either too high or too low), or taking medications that may cause QT prolongation.
Liver Disease
Onset 4 MG Tablet should be used with caution if you have liver problems as this medicine is broken down in the liver. An impaired liver function might lead to a buildup of unused medicine, resulting in toxicity.
Food interactions
Information not available.
Lab interactions
Information not available.
Take Onset 4 MG Tablet as instructed by your doctor. Do not break, crush, or chew the tablet.
Do not take in larger amounts than prescribed as it may increase the risk of side effects.
Consult your doctor if you experience any undesirable effects that persist or worsen.
Avoid eating heavy meals as it may trigger nausea and vomiting. Instead, eat smaller meals more frequently.
Miscelleneous
How it works
Onset 4 MG Tablet works by blocking the action of a naturally occurring chemical substance that causes nausea and vomiting.
Legal Status
Classification
Category
Antiemetics, 5HT3 receptor antagonists
Schedule
Schedule H
CiplaMed. 2021. EMESET Tablets. [online] Available at: [Accessed 8 January 2021].
Medicines.org.uk. 2021. Ondansetron 4 Mg Film-Coated Tablets - Summary Of Product Characteristics (Smpc) - (Emc). [online] Available at: [Accessed 8 January 2021].
Novartis.com.sg. 2021. [online] Available at: [Accessed 8 January 2021].
Pubchem.ncbi.nlm.nih.gov. 2021. Ondansetron. [online] Available at: [Accessed 22 February 2021].
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Information on this page was last updated on 7 Sep 2022
Disclaimer
We’ve made all possible efforts to ensure that the information provided here is accurate, up-to-date and complete, however, it should not be treated as a substitute for professional medical advice, diagnosis or treatment. Practo only provides reference source for common information on medicines and does not guarantee its accuracy or exhaustiveness. The absence of a warning for any drug or combination thereof, should not be assumed to indicate that the drug or combination is safe, effective, or appropriate for any given patient. Practo does not assume any responsibility for any aspect of healthcare administered with the aid of information provided above. If you have any doubts about your medication then we strongly recommend that you consult with your doctor, nurse or healthcare provider. See detailed T&C here.