There was an increased risk of non-serious AEs with cannabinoids compared with placebo .
Conclusions There was moderate evidence to support cannabinoids in treating chronic , non-cancer pain at 2 weeks .
Similar results were observed at later time points , but the confidence in effect is low .
There is little evidence that cannabinoids increase the risk of experiencing serious AEs , although non-serious AEs may be common in the short-term period following use
Background For patients with chronic , non-cancer pain , traditional pain-relieving medications include opioids , which have shown benefits but are associated with increased risks of addiction and adverse effects .
Medical cannabis has emerged as a treatment alternative for managing these patients and there has been a rise in the number of r and omized clinical trials in recent years ; therefore , a systematic review of the evidence was warranted .
Objective To analyze the evidence surrounding the benefits and harms of medical cannabinoids in the treatment of chronic , non-cancer-related pain .
GRADE guidelines: 3. Rating the quality of evidence.
This article introduces the approach of GRADE to rating  quality of evidence .  GRADE specifies four categories-high , moderate , low , and very low-that are applied to a body of evidence , not to individual studies . In the context of a systematic review , quality reflects our confidence that the estimates of the effect are correct . In the context of recommendations , quality reflects our confidence that the effect estimates are adequate to support a particular recommendation . R and omized trials begin as high- quality evidence , observational studies as low quality . " Quality " as used in GRADE means more than risk of bias and so may also be compromised by imprecision , inconsistency , indirectness of study results , and publication bias . In addition , several factors can increase our confidence in an estimate of effect . GRADE provides a systematic approach for considering and reporting each of these factors . GRADE separates the process of assessing quality of evidence from the process of making recommendations . Judgments about the strength of a recommendation depend on more than just the quality of evidence
There was an increased risk of non-serious AEs with cannabinoids compared with placebo .
Conclusions There was moderate evidence to support cannabinoids in treating chronic , non-cancer pain at 2 weeks .
Similar results were observed at later time points , but the confidence in effect is low .
There is little evidence that cannabinoids increase the risk of experiencing serious AEs , although non-serious AEs may be common in the short-term period following use
Background For patients with chronic , non-cancer pain , traditional pain-relieving medications include opioids , which have shown benefits but are associated with increased risks of addiction and adverse effects .
Medical cannabis has emerged as a treatment alternative for managing these patients and there has been a rise in the number of r and omized clinical trials in recent years ; therefore , a systematic review of the evidence was warranted .
Objective To analyze the evidence surrounding the benefits and harms of medical cannabinoids in the treatment of chronic , non-cancer-related pain .