The 3rd International Annual Congress on Controversies on Cannabis-Based Medicines (Med-Cannabis 2020) will address the many controversies surrounding cannabis-based medicines. Strong public and patient demand have led to the decision to able medical cannabis products in most European nations. This The Congress will bring together researchers, clinicians, trialists, methodologists, industry professionals, the European Monitoring Centre for Drugs and Drug Addiction, and national cannabis agencies to update participants on the current knowledge and controversies and outline a vision for the future of cannabis-based medicines.