Prescribing cannabis for harm reduction

“Neuropathic pain affects between 5% and 10% of the US population and can be refractory to treatment. Opioids may be recommended as a second-line pharmacotherapy but have risks including overdose and death. Cannabis has been shown to be effective for treating nerve pain without the risk of fatal poisoning. The author suggests that physicians who treat neuropathic pain with opioids should evaluate their patients for a trial of cannabis and prescribe it when appropriate prior to using opioids. This harm reduction strategy may reduce the morbidity and mortality rates associated with prescription pain medications.”

“Medicine relies upon the principle of, “First, do no harm,” and one might supplement the axiom to read – “First, do no harm, and second, reduce all the harm you can.” “Harm reduction” or “harm minimization” can be defined in the broadest sense as strategies designed to reduce risk or harm. Those harmed may include the individual, others impacted by the harmed person, and society. The substitution of a safer drug for one that is more dangerous is considered harm reduction. Specific examples of HR include prescribing methadone or buprenorphine to replace heroin, prescribing nicotine patches to be used instead of smoking tobacco, and prescribing intranasal naloxone to patients on opioid therapy to be utilized in case of overdose. Substituting cannabis for prescribed opioids may be considered a harm reduction strategy.”

“Under the Federal Controlled Substance Act “marihuana” is illegal and classified as a schedule I substance-meaning it has a high potential for abuse and no accepted medical use. However, sixteen states and the District of Columbia have legalized cannabis for medicinal use and these include Alaska, Arizona, California, Colorado, Delaware, Hawaii, Maine, Michigan, Montana, Nevada, New Jersey, New Mexico, Oregon, Rhode Island, Vermont, and Washington. Each state law differs but all allow physicians to “authorize” or “recommend” cannabis for specific ailments. This “recommendation” affords legal protections for patients to obtain and use medicinal cannabis, and may be considered the “prescription.””

“Cannabis (Cannabis sativa) and the opium poppy (Papaver somniferum) are both ancient plants that have been used medicinally for thousands of years. The natural and synthetic derivatives of opium, including morphine, are called “opioids.”  “Cannabinoids” is the term for a class of compounds within cannabis of which delta-9-tetrahydrocannabinol (THC) is the most familiar. Besides THC, approximately 100 other cannabinoids have been identified including one of special scientific interest called “cannabidiol” (CBD). The human body produces both endogenous cannabinoids (endocannabinoids) and opioids (endorphins) and contains specific receptors for these substances. There is an extensive literature on opioids but far less on cannabis/cannabinoids (CC).”

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3295721/