This page contains brief details about the drug , it's indication, dosage & administaration, mechanism of action, related brands with strength, warnings and common side effects.

Background and Date of Approval

The FDA approved vecuronium bromide for medical use on 2/10/1999 as a skeletal muscle relaxant during surgery.

Mechanism of Action of undefined

When your nerves want your muscles to move, they release a messenger called acetylcholine. This acetylcholine fits into special receptors on your muscle cells, triggering the muscles to contract. When vecuronium is present, it blocks this messenger, preventing the muscles from receiving the signal to contract and keeping them relaxed.

Uses of undefined

Vecuronium bromide is administered as an adjuvant to general anesthesia to prepare you for surgery. This medication assists in maintaining your body still by relaxing your skeletal muscles during the surgical procedure. It also facilitates the relaxation of the throat, making inserting a breathing tube (endotracheal intubation) easier before surgery. This medication is used as a muscle relaxant in almost all age groups, including adults, adolescents (2-17 years), newborns, and infants (0 days – 23 months).  It is also employed to aid in emergency airway management (mechanical ventilation)  for patients in intensive care.

undefined Drug administaration and Dosage available

Vecuronium bromide injection is available in 3 different strengths: 4mg, 10mg, and 20mg. It is given intravenously (into a vein), either as single injections or as a continuous infusion (a drip) by your healthcare provider. Your physician will decide the dosage of this injection based on the severity of your disease and other factors.

Warnings, Precautions and Side Effects of undefined


Before receiving vecuronium bromide, it is crucial to discuss the following with your healthcare team: any prior allergies to vecuronium bromide or other muscle relaxants, reduced renal function or renal disease, heart or circulatory conditions, fluid accumulation, liver or gallbladder issues, edema (swelling of ankles), diseases affecting nerves and muscles such as polio, myasthenia gravis or Eaton-Lambert syndrome. Transparent communication about your medical history is essential for a safe and effective treatment plan.


Inform your doctor if you are pregnant or breastfeeding before the treatment. Do not drive or use heavy machinery until you are told okay since vecuronium bromide might make you weak or dizzy. Your anesthesia doctor will tell you when it is safe to resume these activities and how long these feelings might last.

Side Effects

Vecuronium bromide can cause some side effects like any other drug. If any side effects occur while you are under anaesthetic, they will be seen and treated by your doctor. Some of the serious side effects are prolonged paralysis (seen in long-term use), bronchospasm/respiratory depression (difficulty breathing), apnea (when you stop breathing), and anaphylaxis (sudden allergic reactions). Seek medical attention immediately if any of these side effects occur. Some of the common side effects are injection site pain and muscle weakness.

Word Of Advice

This medication is intended for use exclusively within the hospital and will be administered by your doctor during your surgical procedure. While receiving vecuronium bromide, your doctor will continuously monitor you to assess its impact. It's important to note that this injection induces muscle relaxation, including your breathing muscles. This means you will require assistance with breathing (artificial ventilation) during and after your surgery until you can resume breathing independently. If you have any concerns or questions, always communicate them with your doctor before taking this medication. Your safety and comfort are our priorities.

Frequently Asked Question


  1. Sun Pharma, Electronic medicines compendium (EMC), [Revised on Jun 2019], [Accessed on 25th Sept 2023],
  2. Ben Venue Laboratories, US Food and Drug Administration (FDA), [Revised on Jul 2018], [Accessed on 25th Sep 2023],
  3. Mark Ramzy et al.; Vecuronium, Published on Dec 2022; Accessed on 25/09/2023;
  4. KD Tripathi, Essentials of Medical Pharmacology, Skeletal muscle relaxants, 8th edition, 2019, 379
  5. Goodman & Gilman’s, The Pharmacological Basis of Therapeutics, Agents acting at the neuromuscular junction and autonomic ganglia, 13th edition, 2018, 188


The drug information on this page is not a substitute for medical advice. It is meant for educational purposes only. For further details, consult your doctor about your medical condition to know if you can receive this treatment.