[Code of Federal Regulations] [Title 21, Volume 4] [Revised as of April 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 21CFR290.1] [Page 157] TITLE 21--FOOD AND DRUGS CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) PART 290--CONTROLLED DRUGS--Table of Contents Subpart A--General Provisions Sec. 290.1 Controlled substances. Any drug that is a controlled substance listed in schedule II, III, IV, or V of the Federal Controlled Substances Act or implementing regulations must be dispensed by prescription only as required by section 503(b)(1) of the Federal Food, Drug, and Cosmetic Act unless specifically exempted in Sec. 290.2. [67 FR 4906, Feb. 1, 2002] [[Page 158]]