INDICATIONS : VECURONIUM BROMIDE
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What is Anesthesia? An anesthetic (anaesthetic), is a drug that causes anesthesia — reversible loss of sensation. They contrast with analgesics (painkillers), which relieve pain without eliminating sensation. These drugs are generally administered to facilitate surgery. A wide variety of drugs are used in modern anesthetic practice. Many are rarely used outside of anesthesia, although others are used commonly by all disciplines. Anesthetics are categorized in to two classes: general anesthetics, which cause a reversible loss of consciousness, and local anesthetics, which cause a reversible loss of sensation for a limited region of the body while maintaining consciousness. Combinations of anesthetics are sometimes used for their synergistic and additive therapeutic effects, however, adverse effects may also be increased.
More on Vecuronium Below
Vecuronium (Norcuron) is a muscle relaxant in the category of non-depolarizing blocking agents. Vecuronium bromide is indicated as an adjunct to general anesthesia, to facilitate endotracheal intubation and to provide skeletal muscle relaxation during surgery or mechanical ventilation.
Although vecuronium bromide is often thought of as a muscle relaxant, it may be more accurate to classify it as a paralyzing agent. It is commercially available as ampoules containing 4 mg of the drug in powder form which needs to be dissolved in distilled water prior to administration to the patient. In India, vials containing 10 mg of vecuronium bromide are also commercially available, for use in patients undergoing prolonged surgical procedures.
Clinical pharmacology: Vecuronium operates by competing for the cholinoceptors at the motor end plate thereby exerting its muscle-relaxing properties which are used adjunctively to general anesthesia. Under balanced anesthesia, the time to recovery to 25% of control (clinical duration) is approximately 25 to 40 minutes after injection and recovery is usually 95% complete approximately 45 to 65 minutes after injection of intubating dose. The neuromuscular blocking-
action of vecuronium is slightly enhanced in the presence of potent inhalation anesthetics. If vecuronium is first administered more than 5 minutes after the start of the inhalation of enflurane, isoflurane, or halothane, or when a steady state has been achieved, the intubating dose of vecuronium may be decreased by approximately 15%. Vecuronium is an aminosteroid.
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