Налмефен

Химические свойства

Off-White Solid

Использование

A structural analog of Naltrexone (N285780) with opiate antagonist activity used in pharmaceutical treatment of alcoholism. Other pharmacological applications of this compound aim to reduce food cravings, drug abuse and pulmonary disease in affected individuals. Used as an opioid-induced tranquilizer on large animals in the veterinary industry. Narcotic antagonist.

Биологические функции

Nalmefene (Revex) is a long-acting injectable pure opioid antagonist recently introduced in the United States. It binds all opioid receptors and reverses the effects of opioid agonists at those receptors.The onset of action is 2 minutes after IV administration. Hepatic metabolism is slow and occurs via glucuronide conjugation to inactive metabolites. Its half-life of 11 hours is about 5 times that of naloxone. Indications include use in postoperative settings to reverse respiratory depression and in opioid overdose. Due to the long duration of action of nalmefene, however, naloxone may be preferred for treatment of overdose because it produces a shorter duration of withdrawal effects.

Общее описание

Nalmefene (Revex) is a pure opioid antagonist that is the6-methylene analog of naltrexone. It is available as a solutionfor IV, IM, or subcutaneous (SC) administration toreverse the effects of opioids after general anesthesia andin the treatment of overdose. It is longer acting than naloxonebut otherwise has a similar pharmacodynamic andmetabolic (3-glucuronidation) profile. Nalmefene hashigher oral bioavailability (approximately 40%) thannaloxone or naltrexone and is currently being investigatedas an oral treatment for pathological gambling and alcoholabuse.