Opioids: affinity for receptor types in Horses (Equis) | Vetlexicon
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Opioids: affinity for receptor types

ISSN 2398-2977


Opioids: affinity for receptor types

Opioid Receptor
μκδ
Pethidine ++ +/- -
Morphine +++ +/- +/-
Methadone +++ - -
Fentanyl +++ - -(+)
Alfentanil +++ - -
Etorphine +++ ++ ++
Buprenorphine +++(partial ag) ++(antag?) +/-
Butorphanol ++(ag/antag) ++(agonist) -
Naloxone +++(antag) ++(antag) +(antag)

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