Pro

Denis Petro, MD, Board of Directors for Patients Out of Time, wrote in his paper titled "Spasticity and Chronic Pain" published in the 1997 book Cannabis in Medical Practice - A Legal, Historical and Pharmacological Overview of the Therapeutic Use of Marijuana:

“The evidence in support of cannabis as a treatment for pain exists both in preclinical animal studies and in a small number of clinical trials. Since cannabis contains many active cannabinoids in varying amounts in differing plants, a coherent recommendation concerning use against pain symptoms is lacking…

Considering the alternative of addicting drugs such as the opiate analgesics, patients may opt for the relative safety of cannabis.”

1997