14252-80-3

White Solid

antineoplastic

Sodium channel blocker, local anesthetic

ChEBI: Bupivacaine hydrochloride (anhydrous) is a racemate composed of equimolar amounts of dextrobupivacaine hydrochloride and levobupivacaine hydrochloride. The monohydrate form is commonly used as a local anaesthetic. It has a role as an adrenergic antagonist, an amphiphile, an EC 3.1.1.8 (cholinesterase) inhibitor, an EC 3.6.3.8 (Ca(2+)-transporting ATPase) inhibitor and a local anaesthetic. It contains a levobupivacaine hydrochloride (anhydrous), a dextrobupivacaine hydrochloride (anhydrous) and a bupivacaine(1+).

Marcaine (Hospira); Sensorcaine (AstraZeneca).

Bupivacaine hydrochloride (Marcaine, Sensorcaine) has particularly long action, and some nerve blocks last more than 24 hours; this is often an advantage for postoperative analgesia. Its use for epidural anesthesia in obstetrics has attracted interest because it can relieve the pain of labor at concentrations as low as 0.125% while permitting some motor activity of abdominal muscles to aid in expelling the fetus. The lower concentration minimizes the possibility of cardiac toxicity. Fetal drug concentrations remain low, and drug-induced neurobehavioral changes are not observed in the newborn. Bupivacaine also is approved for spinal anesthesia and is approximately four times more potent and more toxic than mepivacaine and lidocaine. It can be used with or without epinephrine.