Dr. Peter Grinspoon is a primary care physician and cannabis specialist at Massachusetts General Hospital; Instructor in Medicine, Harvard Medical School, Boston, MA. Author of Free Refills: A Doctor Confronts His Addiction (Hachette Books, 2016) and Seeing Through the Smoke: A Cannabis Specialist Untangles the Truth About Marijuana (Prometheus, 2023).
Dr. Grinspoon has no financial relationships with companies related to this material.
Please see our Terms and Conditions, Privacy Policy, Subscription Agreement, Use of Cookies, and Hardware/Software Requirements to view our website.
© 2025 Carlat Publishing, LLC and Affiliates, All Rights Reserved.