Library > Opioid Receptor Activity

Agonism	Opioid	μ Activity	δ Activity	κ Activity	Common Brand Name
Strong	Morphine	agonist	agonist	agonist	MSContin
Strong	Heroin	agonist	agonist	agonist	Smack, Dope, H
Strong	Methadone	agonist	at high doses	at high doses	Methadose
Strong	Hydromorphone	agonist	at high doses	at high doses	Dilaudid
Strong	Meperidine	agonist	at high doses	at high doses	Demerol
Strong	Fentanyl	agonist	at high doses	at high doses	Duragesic
Strong	Alfentanil	agonist	at high doses	at high doses	Alfenta
Strong	Sufentanil	agonist	at high doses	at high doses	Sufenta
Moderate to Weak	Oxycodone	agonist	at high doses	at high doses	OxyContin
Moderate to Weak	Hydrocodone	agonist	at high doses	at high doses	Vicodin
Moderate to Weak	Codeine	agonist	at high doses	at high doses	Tylenol #3
Moderate to Weak	Propoxyphene	agonist	at high doses	at high doses	Darvocet
Moderate to Weak	Dextromethorphan	agonist	at high doses	at high doses	Robitussin DM
Moderate to Weak	Diphenoxylate	agonist	at high doses	at high doses	Lomotil
Moderate to Weak	Difenoxin	agonist	at high doses	at high doses	Motofen
Moderate to Weak	Loperamide	agonist	at high doses	at high doses	Imodium AD
Mixed Agonist/Antagonist	Nalbuphine	agonist	no activity	agonist	Nubain
Mixed Agonist/Antagonist	Pentazocine	partial agonist	no activity	agonist	Talwin
Mixed Agonist/Antagonist	Butorphanol	partial agonist	no activity	agonist	Stadol
Mixed Agonist/Antagonist	Buprenorphine	partial agonist	no activity	antagonist	Buprenex
Antagonists	Naloxone	antagonist	antagonist	antagonist	Narcan
Antagonists	Naltrexone	antagonist	antagonist	antagonist	Revia