Opioid analgesics

Opoids Analgesics

1. Natural opium alkaloids

Morphine

Codeine

Noscapine

2. Semisynthetic derivatives

Heroin

Oxymorphone

Pholcodein

3. Synthetic opoids

Fentanyl

Loperamide

Tramadol

Pethidine

Diphenoxylate

Methadone

Dextropropoxyphene

Ethoheptazine

Oxycodone

Dextromethaorphan

Mepridine

Buprenorphine