AskDefine | Define thebaine

User Contributed Dictionary



  1. A poisonous alkaloid, paramorphine, obtained from opium; not used in medicine.

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Extensive Definition

Thebaine (paramorphine) is an opiate alkaloid. A minor constituent of opium, thebaine is chemically similar to both morphine and codeine, but has stimulatory rather than depressant effects, causing strychnine-like convulsions at higher doses. Thebaine is not used therapeutically, but can be converted industrially into a variety of compounds including oxycodone, oxymorphone, nalbuphine, naloxone, naltrexone, buprenorphine and etorphine.
It is controlled in Schedule II of the Controlled Substances Act as well as under international law. Thebaine is listed as a Class A drug under the Misuse of Drugs Act 1971 in the United Kingdom.


thebaine in German: Thebain
thebaine in Spanish: Tebaína
thebaine in French: Thébaïne
thebaine in Italian: Tebaina
thebaine in Dutch: Thebaïne
thebaine in Norwegian: Tebain
thebaine in Polish: Tebaina
thebaine in Romanian: Tebaină
thebaine in Russian: Тебаин
thebaine in Swedish: Tebain
thebaine in Thai: ทีบาอีน
thebaine in Turkish: Tebain
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