Human hallucinogenic drug research in the United States: a present-day case history and review of the process.

Legitimate human research with hallucinogenic drugs, although of great theoretical and practical interest, involves daunting regulatory hurdles that have discouraged investigators from attempting such work. Using the example of the author's own application for and receipt of federal permission to administer N,N-dimethyltryptamine (DMT) to humans, this article reviews the application process, obstacles and their solutions, and the local and federal issues involved. Further human research with hallucinogens is possible if a persistent and collaborative effort is made with the relevant institutions that oversee the performance of this type of research.