School of Pharmacy


  • PharmD, University of California, San Francisco

Research Interests

  • Nature of truth in scientific investigation

Courses Taught

  • Pharm 522: Nature of Scientific Truth


Dr. Hansten’s books on drug interactions have sold over one million copies since 1971, and have been translated into six languages. He has lectured widely in North America, Europe, and Asia as well as Latin America and the Middle East. He was on the Advisory Board and a Contributing Editor to “”The Medical Letter”” for many years. He received the Distinguished Alumnus Award from the School of Pharmacy at the University of California, San Francisco, and has received teaching awards from students at the University of Washington and Washington State University.

As an emeritus faculty member, Dr. Hansten is devoting more time to philosophy, including the philosophy of science. In 2009, he published a book entitled “Premature Factulation: The Ignorance of Certainty and the Ghost of Montaigne.” He is currently working on a book with the tentative title of “Ten Philosophical Ideas You Can’t Live Without.”