etorphine


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e·tor·phine

(et-ōr'fēn),
A narcotic analgesic, with a potency about 1,000 times that of morphine; used in tranquilizer darts.

etorphine

a very potent, semisynthetic analgesic usually used in heavy dosage to avoid side-effects and then reversed with diprenorphine. Used mostly as an immobilizer for free-ranging wild animals, usually in combination with hyoscine and acepromazine.
References in periodicals archive ?
Some physiological effects of M99 etorphine on immobilized free-ranging moose.
Handling capture drugs in situations with corralled or boxed asses will be far safer than during high speed chases and would also allow for alternative anaesthetic protocols, not necessitating the use of etorphine (Walzer 2007).
It became apparent that agonists such as morphine, antagonists such as naloxone and mixed agonist-antagonists such as nalorphine must act on multiple receptors and this was confirmed in the early 1970s with (3) H-labeled levorphanol (2), naloxone (3), etorphine (4) and dihydromorphine (5) that bound specifically to sites in the central nervous system.
Stereospecific binding of the potent narcotic analgesic [3H] etorphine to rat-brain homogenate.
The method utilizes etorphine as the internal calibrator, conversion of the analytes to the pentafluoropropionyl esters, and chromatography on a packed column.
The method was optimized by using N-n-propylnorbuprenorphine, a closer structural analog of buprenorphine than the etorphine used by Cone et al.
Different immobilizing agents were used over the years (Table 1); the narcotics etorphine and carfentanil (Lanthier et al.
We examined to what extent winter chemical immobilization using etorphine and subsequent handling affected the immediate risk of mortality and subsequent calving success and early calf mortality in a Norwegian moose population.
The animals were immobilized with an intramuscular injection of etorphine HC1 that was reversed with diprenorphine HO, as described by Griffiths et al.
Key words: Alces alces, anesthesia, capture, carfentanil, etorphine, immobilization, ketamine, medetomidine, xylazine
Adult female moose were immobilised with etorphine and xylazine (Sandegren et al.