### Question
What is the definition of habit-forming narcotic drug" or "narcotic?


### Answer
The definition of **habit-forming narcotic drug" or "narcotic** is as follows in *42 U.S.C. § 201*:

> opium and coca leaves and the several alkaloids derived therefrom, the best known of these alkaloids being morphia, heroin, and codeine, obtained from opium, and cocaine derived from the coca plant

#### Citation:
  - *42 U.S.C. § 201*
  - Heading: **CHAPTER 6A-PUBLIC HEALTH SERVICE > SUBCHAPTER I-ADMINISTRATION AND MISCELLANEOUS PROVISIONS**

