More than half of those surveyed said it helped them to reduce their use of other pain medications.
The guidelines were prompted by concerns that cannabis can potentially interact with anaesthesia.
Leaders have called for UK government to increase funding and making it easier for companies to invest in research.
A 20-year US study shows alcohol abuse is declining while the consumption of cannabis edibles is on the rise.
The study was funded by the National Institutes of Drug Abuse (NIDA) in America.
The new legislation will encourage research on cannabis by removing some of the current barriers.
Scientists know very little about how cannabinoid biosynthesis is controlled.
Number of patients enrolled in medical cannabis programmes increased from 678,408 in 2016 to 2,974,433 in 2020.
Medical cannabis is a genuine alternative for people battling a variety of health conditions
Dr Peter Grinspoon discusses the medical, wellness and recreational benefits of cannabis.