Thebaine

**Definition:** A drug that is derived from opium, which contains from 0.3-1.5% thebaine depending on its origin. It produces strychnine-like convulsions rather than narcosis. It may be habit-forming and is a controlled substance (opiate) listed in the U.S. Code of Federal Regulations, Title 21 Part 1308.12 (1985). (From Merck Index, 11th ed)

**Tree numbers:** - D03.132.577.249.562.856 - D03.605.497.607.851 - D03.633.400.686.607.851 - D04.615.723.795.576.856