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Pharmacology

Classification of drugs -opioids

Morphine analogues

Morphine

Codeine

Heroin

Hydrocodone

Hydromorphone

Oxycodone

Oxymorphone

Morphinans

Butorphanol

Levorphanol

Benzomorphans

Pentazocine

Cyclazocine

Phenyl piperidines

Meperidine

Loperamide

Anilino piperidines

Fentanyl

Alfentanil

Sufentanil

Rumifentanil

Others

Tapentadol

Tramadol

Diphenoxylate

Mixed agonist-antagonists

Buprenorphine

Nalbuphine

Nalorphine

Pure antagonists

Naloxone

Naltrexone