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Napronyl Injection

Written By Dr. Syeda Aafia, MBA, BDS
Reviewed By Dr. Mekhala Chandra, MD, MBBS
Last updated on 13 Oct 2025 | 04:22 PM (IST)
Napronyl Injection belongs to a group of medicines called muscle relaxants. It is used along with general anesthesia or sedatives to provide skeletal muscle relaxation during surgical procedures. It is also used to facilitate emergency airway management in patients in intensive care.
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General Information

Contains

Succinyl Choline Chloride (500mg/10ml)

Marketer

Miracalus Pharma Pvt Ltd

Storage

Store in a refrigerator (2 - 8°C). Do not freeze.
The content is shown in English
Napronyl Injection image
Napronyl Injection image

Product introduction

Napronyl Injection is administered by a healthcare professional. You should not self-administer this medicine at home. The dose and duration will depend on what you are taking it for and how well it helps your symptoms.

The most common side effects of this medicine include abdominal cramps or pain, nausea,  muscle twitching,  production of saliva, and muscle pain. If any of these side effects persist or get worse, you should let your doctor know. Your doctor may be able to suggest ways of preventing or reducing the symptoms.

Before using it, to make sure it is safe for you, you should let your doctor know if you have any other medical conditions or disorders. You should also tell your doctor all the other medicines you are using or taking. Pregnant and breastfeeding women should consult their doctors before using this medicine.

Uses of Napronyl Injection

  • Skeletal muscle relaxation during surgery

Benefits of Napronyl Injection

Skeletal muscle relaxation during surgery
Napronyl Injection is used to relax muscles during anesthesia and surgical procedures. It works by blocking chemical messengers in the brain that are responsible for rigidity, inflammation or swelling. It effectively relieves muscle stiffness or spasm, thereby improving muscle movement.
It is given as an injection by a doctor or nurse and should not be self-administered. The dose and duration will be decided by the doctor depending on the condition you are being treated for. This will help you to go about your daily activities more easily and have a better, more active, quality of life.

Side effects of Napronyl Injection

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them
Common side effects of Napronyl
  • Abdominal cramp
  • Abdominal pain
  • Nausea
  • Muscle twitching
  • Excessive salivation
  • Muscle pain

How to use Napronyl Injection

Your doctor or nurse will give you this medicine. Kindly do not self administer.

How Napronyl Injection works

Napronyl Injection relaxes the muscles by blocking the impulses from the nerves.

Quick tips

  • Napronyl Injection is given as an injection into a vein under the supervision of a doctor.
  • It makes you feel dizzy or drowsy. Do not drive until you know how Napronyl Injection affects you.
  • Your doctor will monitor your blood pressure regularly as the medicine may lead to high blood pressure.
  • Inform your doctor if you are pregnant, planning pregnancy or breastfeeding.
  • Inform your doctor if you experience skin rash, swelling of face or lips and difficulty breathing.

Safety advice

Alcohol

Alcohol

CONSULT YOUR DOCTOR
It is not known whether it is safe to consume alcohol with Napronyl Injection. Please consult your doctor.
Pregnancy

Pregnancy

CONSULT YOUR DOCTOR
Napronyl Injection may be unsafe to use during pregnancy. Although there are limited studies in humans, animal studies have shown harmful effects on the developing baby. Your doctor will weigh the benefits and any potential risks before prescribing it to you. Please consult your doctor.
Breast feeding

Breast feeding

SAFE IF PRESCRIBED
Napronyl Injection is probably safe to use during breastfeeding. Limited human data suggests that the drug does not represent any significant risk to the baby.
Driving

Driving

CONSULT YOUR DOCTOR
It is not known whether Napronyl Injection alters the ability to drive. Do not drive if you experience any symptoms that affect your ability to concentrate and react.
Kidney

Kidney

SAFE IF PRESCRIBED
Napronyl Injection is safe to use in patients with kidney disease. No dose adjustment of Napronyl Injection is recommended.
However, inform your doctor if you have any underlying kidney disease.
Liver

Liver

CAUTION
Napronyl Injection should be used with caution in patients with liver disease. Dose adjustment of Napronyl Injection may be needed. Please consult your doctor.

Fact Box

Chemical Class

Others, Depolarizing Agent

Habit Forming

No

Therapeutic Class

PAIN ANALGESICS

Action Class

Peripherally Acting Skeletal Muscle Relaxants

References

  1. Pubchem. Succinyl Choline Chloride. [Accessed 02 Apr. 2019] (online) Available from:
  2. Suxamethonium Chloride. Berlin, Germany: B. Braun Melsungen AG; 2018. [Accessed 02 Apr. 2019] (online) Available from:
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Tata 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover everything about particular health conditions, lab tests, medicines, all possible side effects, drug interactions, warnings, alerts, etc. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.

Marketer details

Name: Miracalus Pharma Pvt Ltd
Address: 213, Shivai Dongre Industrial Premises, Andheri - Kurla Road, Andheri(E), Mumbai - 400 072, Maharashtra, India.

Vendor Details

Country of origin: India

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