1. OPIOID μ RECEPTOR AGONIST
a. Natural opium alkaloids:
Morphine
Codeine
b. Semisynthetic opiates:
Diacetylmorphine (Heroin)
Pholcodeine
Oxymorphone
Hydromorphone
Oxycodone
c. Synthetic opioids:
Pethidine (Meperidine)
Fentanyl
Alfentanil
Sufentanil
Methadone
Dextropropoxyphene
Tramadol
