
Antoxipan Ds Sachet
Abbott India Limited - Sachet - 6 G
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Nefopam (20mg)
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Nefosar Injection is used for pain relief.
Medically reviewed by Dr. Balaji Krishnan, MBBS · Updated September 2026
Nefosar Injection contains Nefopam (20mg). It belongs to the Non-steroidal anti-inflammatory drug class of medicines.
Pain relief
Nefosar 20mg Injection is a non-opioid pain reliever. It works by blocking the transmission of pain signals to the brain thereby decreasing pain perception.
Your doctor or nurse will give you this medicine. Kindly do not self administer.
Take it exactly as your doctor prescribed. Do not change the dose or stop early on your own.
If you miss a dose of Nefosar 20mg Injection, consult your doctor.
An overdose of this medicine can cause stomach bleeding, kidney failure, drowsiness and fits. Do not wait for symptoms to appear — go to the nearest emergency department and take the pack or strip with you.
Most side effects of Nefosar are mild and settle as the body adjusts. Reported side effects include:
Stop the medicine and seek help immediately for a rash, swelling of the face or lips, wheezing or difficulty breathing. Tell your doctor about any side effect that persists or worries you.
| Pregnancy | Pregnancy CONSULT YOUR DOCTOR |
|---|---|
| Breastfeeding | Breast feeding CONSULT YOUR DOCTOR |
| Alcohol | Alcohol UNSAFE |
| Driving | Driving UNSAFE |
| Kidney | Kidney CAUTION |
| Liver | Liver CAUTION |
| Habit forming | No |
Take it with or just after food, and for the shortest time that works. Stop and seek urgent care for black or tarry stools, vomiting blood, or severe stomach pain — this group can cause bleeding from the stomach. Long or high-dose use raises the risk of heart attack, stroke and kidney injury, particularly in older people and those already at risk. Avoid if you are dehydrated or have an illness with vomiting or loose motions — the kidneys are vulnerable then. Must be avoided in the last three months of pregnancy.
Not for anyone with a known allergy to this medicine or to any ingredient in the pack. Not for people with an active stomach ulcer, severe kidney or heart failure, or asthma triggered by aspirin or anti-inflammatory painkillers. Not in the third trimester of pregnancy.
Combining with a blood thinner or aspirin sharply raises the bleeding risk. Reduces the effect of blood pressure medicines and water tablets, and together with them can harm the kidneys. Never take two anti-inflammatory painkillers at the same time.
Store as printed on the carton — some injections need refrigeration and must not be frozen. Keep out of the reach of children.
Finish the complete course as suggested by the doctor even if you feel better. It makes you feel dizzy or drowsy. Do not drive until you know how Nefosar 20mg Injection affects you. Your doctor will monitor your blood pressure regularly as the medicine may cause a lowering of blood pressure. Inform your doctor if you are pregnant, planning pregnancy or breastfeeding.

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The information on Nefosar Injection is compiled from the manufacturer's prescribing information and the sources below, and is reviewed by a registered medical practitioner. It does not replace advice from your own doctor.