Donald R. Kirsch, PhD, coauthor of The Drug Hunters, was a drug hunter for more than thirty-five years, holds more than two dozen drug-related patents, has written more than fifty research papers, and has been a reviewer for prestigious scientific journals. He served as a director of neuroscience research at Wyeth, the director of molecular genetic screen design at Cyanamid, the leader of a Research Group in Microbiology and Cell Biology at Squibb Institute for Medical Research, and the Chief Scientific Officer at Cambria Pharmaceuticals. He has taught in the biotechnology department at Harvard Extension School and currently teaches at Columbia University. He lives in Westchester, NY.