[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: 21CFR201.129] [Page 55] TITLE 21--FOOD AND DRUGS CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) PART 201--LABELING--Table of Contents Subpart D--Exemptions From Adequate Directions for Use Sec. 201.129 Drugs; exemption for radioactive drugs for research use. A radioactive drug intended for administration to human research subjects during the course of a research project intended to obtain basic research information regarding metabolism (including kinetics, distribution, and localization) of a radioactively labeled drug or regarding human physiology, pathophysiology, or biochemistry (but not intended for immediate therapeutic, diagnostic, or similar purposes), under the conditions set forth in Sec. 361.1 of this chapter, shall be exempt from section 502(f)(1) of the act if the packaging, label, and labeling are in compliance with Sec. 361.1(f) of this chapter. [41 FR 6911, Feb. 13, 1976]