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vials(s) of 2 ml
₹ 98 /-
We show medicines with the same composition, not the same brand. They are tested for quality by us and work the same while costing less.
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Out of Stock
Branded Medicine
onset 4mg injection :
₹98/-
SayaCare Generic
₹4/-
96% Saving
Branded Medicine
onset 4mg injection :
₹98/-
SayaCare Generic
₹4/-
96% SavingWhy Choose SayaCare ?
You pay for the medicine, not the brand name
Same active ingredients
Exact Same Dosage Type
Lab Tested Quality
Transparent Test Report

Branded Medicine
onset 4mg injection :
₹98/-
SayaCare Generic
₹4/-
96% SavingWhy Choose SayaCare ?
You pay for the medicine, not the brand name
Same active ingredients
Exact Same Dosage Type
Lab Tested Quality
Transparent Test Report
| Uses | 1- To prevent nausea and vomiting caused by cancer medications, radiation therapy, or surgery. |
| Common Side Effects | 1- Confusion 2- Dizziness 3- Fast heartbeat 4- Fever 5- Headache 6- Trouble breathing |
| Additional Information | Avoid taking alcohol or tobacco with this medicine. |
| Storage | 1- The medicine should be stored at room temperature 2- Keep away from sunlight and moisture 3- Keep away from the reach of children |
| How to Take This Medicine | The medicine should be taken through injection. |
Onset 4mg Injection is a 5-HT3 blocker used to prevent nausea and vomiting from chemo, radiation, or surgery. It works by stopping serotonin from triggering the brain’s vomiting center. Take it as prescribed, same time daily. Common side effects: dizziness, headache, fast heartbeat. Use with caution in liver disease and pregnancy – talk to your doctor. Store in a cool, dry place away from light and kids. Avoid alcohol. Missed a dose? Skip it if it’s close to the next. Overdose signs like seizures or rapid heart rate need urgent medical help.
Onset 4mg Injection is an oral medicine belonging to the class of 5-HT3 serotonin-receptor antagonist medicines. It is used for the following indications:
Onset 4mg Injection combats nausea and vomiting by blocking serotonin from binding to the 5-HT3 receptor. Normally, when serotonin binds to this receptor, it triggers nausea and vomiting, but Onset 4mg Injection prevents this action.
📌 1- Liver Disease
In cases of severe liver disease, the metabolism of Onset 4mg Injection is reduced, leading to increased levels of the drug in the blood. Therefore, if you have liver disease, inform your doctor.
📌 2- Pregnancy
This medicine is categorized as Category B, meaning that animal studies have shown no harm to the fetus, but there are limited studies in humans. Therefore, if you are pregnant or planning to conceive, inform your doctor.
Avoid taking Onset 4mg Injection with the following medicines, as it may increase or decrease the desired effect, or in worse cases, it could be fatal:
Onset 4mg Injection does not interact with any food products, but alcohol should be avoided before and after taking the medicine, as it can increase or decrease the effect of this medicine.
IUPAC (International Union of Pure and Applied Chemistry)/ Chemical name-
9-methyl-3-[(2-methylimidazol-1-yl)methyl]-2,3-dihydro-1H-carbazol-4-one

📌 1- Daily dose
Take Onset 4mg Injection exactly as your doctor recommends. The dose may change based on your condition and how well you respond. Do not take more than prescribed without consulting your doctor.
📌 2- Missed Dose
If you forget to take your medicine, take the medication soon as you remember. If it’s nearly time for your next dose, skip the missed one and continue with your regular schedule. Always consult the doctor before making any changes to your dosage.
📌 3- Overdose
The symptoms of Onset 4mg Injection overdose include seizures, increased heart rate, and recurring seizures. If you know someone who has taken Onset 4mg Injection and is experiencing these symptoms, take them to a hospital immediately.
➡️ You should not give more than an 8 mg dose of Onset 4mg Injection to your dog. However, this medication should only be administered after consulting your veterinarian.
➡️ Yes, Onset 4mg Injection may cause drowsiness in some individuals.
➡️ Studies have found that Onset 4mg Injection is not effective in treating motion sickness.
➡️ Yes, Onset 4mg Injection is commonly used to prevent and stop vomiting.
We show medicines with the same composition, not the same brand. They are tested for quality by us and work the same while costing less.
We test each batch of medicine we sell. You get a quality test report for every medicine you buy. 1 lakh+ customers trust us as they can trust generics now- our app & google reviews speak volume
Actual cost of making medicines is not much. With our small supply chain with no middlemen and low marketing cost, we are able to sell it at lower prices. We spend on what matters testing every medicine for quality and safety. So you get trusted medicines at a lower price.
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