Cannabis products with high THC levels 'cut chronic pain'
Medicinal cannabis with high tetrahydrocannabinol may provide short-term relief to patients with chronic pain, a systematic review suggests.
The researchers warn, however, that any perceived benefits come at the cost of a greater chance of adverse events, including sedation and dizziness.
Their systematic review included 18 randomised placebo-controlled trials and seven observational studies that compared cannabis products with a placebo or no treatment.
Studies were mostly short term (1-6 months) and