Opiate : Opiates

Opiates are a class of drugs that are derivatives (in the broadest sense of the word) of opium. These include two groups of alkaloids: phenanthrenes[?] and papaverines[?]. Opiates in the narrower sense of the word are only the phenanthrenes[?]. Opioids are synthetic drugs that are chemically unrelated to the opiates, but act on the same receptors in the central nervous system and have similar clinical effects.

Phenanthrenes[?]:

Naturally occurring in opium:

Semisynthetic[?] derivatives:

Fully synthetic[?]:

Phenylheptylamines[?]:

Methadone
levomethadyl acetate hydrochloride (LAAM)

Phenylpiperidines[?]:

Veterinary:

A high number of opiates are considered to be highly addictive. One exception is loperamide[?], which cannot cross the blood-brain barrier.

		Opiate : Opiates
		Opiates are a class of drugs that are derivatives (in the broadest sense of the word) of opium. These include two groups of alkaloids: phenanthrenes[?] and papaverines[?]. Opiates in the narrower sense of the word are only the phenanthrenes[?]. Opioids are synthetic drugs that are chemically unrelated to the opiates, but act on the same receptors in the central nervous system and have similar clinical effects. Phenanthrenes[?]: Naturally occurring in opium: Morphine Codeine Semisynthetic[?] derivatives: Heroin Hydromorphone[?] Oxymorphone[?] Hydrocodone Oxycodone Fully synthetic[?]: Phenylheptylamines[?]: Methadone levomethadyl acetate hydrochloride (LAAM) Phenylpiperidines[?]: Meperidine[?] Fentanyl Alfentanil[?] Sufentanil[?] Remifentanil[?] Veterinary: Etorphine[?] Carfentanyl[?] A high number of opiates are considered to be highly addictive. One exception is loperamide[?], which cannot cross the blood-brain barrier. See also nootropics Opiate is an EP by Tool, an American rock band formed in 1989. See Opiate (album) Opiate is also the name of a rock-metal band based in the United Kingdom and signed to Visible Noise[?] records, home of lost prophets[?]. See Opiate (band)[?].
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