💉 Vecuronium Powder for Injection 4 mg
📘 **Description:
Vecuronium bromide** is a non-depolarizing neuromuscular blocking agent used as an adjunct to general anesthesia to facilitate skeletal muscle relaxation, particularly during surgery or mechanical ventilation. It is supplied as a lyophilized (freeze-dried) powder and must be reconstituted before use.
🔬 Formulation:
- Active Ingredient: Vecuronium bromide
- Strength: 4 mg per vial (as powder)
- Reconstitution: Reconstitute with sterile water or normal saline (0.9% NaCl)
- Route of Administration: Intravenous (IV) bolus or infusion
- Brand Names: Norcuron®, Vecuron®, Vekuron®
🧪 Nature / Mechanism of Action:
- Class: Non-depolarizing neuromuscular blocker
- Mechanism: Competitively blocks acetylcholine receptors at the neuromuscular junction, preventing nerve transmission and inducing skeletal muscle paralysis without initial muscle fasciculations (unlike succinylcholine).
🩺 Indications / Uses:
- ✅ Facilitation of endotracheal intubation
- ✅ Muscle relaxation during surgery
- ✅ Maintenance of neuromuscular blockade during mechanical ventilation
- ✅ Adjunct to general anesthesia
✅ Advantages:
- Intermediate duration of action (~30–40 minutes)
- No initial fasciculations
- Cardiovascular stability – minimal effect on heart rate or blood pressure
- Suitable for repeated dosing or continuous infusion
⚠️ Precautions:
- Use with caution in:
- Hepatic or biliary disease (drug is excreted primarily via bile)
- Patients with neuromuscular diseases (e.g. myasthenia gravis – increased sensitivity)
- Electrolyte imbalance (e.g. low potassium or magnesium may increase sensitivity)
- Requires ventilatory support until full recovery of muscle strength
- Monitor train-of-four (TOF) neuromuscular function if available
🤝 Drug Interactions:
- Potentiated by:
- Inhalation anesthetics (e.g. sevoflurane, isoflurane)
- Certain antibiotics (aminoglycosides)
- Magnesium sulfate
- Reduced effect by:
- Chronic anticonvulsant use
📦 Storage:
- Store powder below 25°C (room temperature)
- After reconstitution, use within 24 hours (if refrigerated at 2–8°C)
- Protect from light and contamination