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There's NO evidence Marijuana or CBD oil treats pain better than placebo, major review finds
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There's NO evidence marijuana or CBD oil treats pain better than placebo, major review finds
Marijuana and CBD have no effect on pain relief, a major review has found.
Despite pain being one of the most popular reasons for using cannabis, researchers found the products are no more effective than a placebo.
The review looked at more than a dozen studies in 11 countries involving 1,459 people from early 2000s to September 2021.
The researchers said: 'Our team observed no significant difference between cannabis and a placebo for reducing pain.'
A variety of pain conditions were included, such as nerve damage and multiple sclerosis, as well as a range of cannabis products — THC, CBD and synthetic cannabis — taken via pills, sprays, oils and smoking.
Results showed that pain intensity significantly reduced in response to a placebo, as did cannabis.
The research paper said: 'Our meta-analysis showed that pain was rated as being significantly less intense after treatment with a placebo, with a moderate to large effect depending on each person.'
It added: 'In line with general principles of human perception, expectations of (possible) pain relief can modulate sensory processing and thereby reduce the perception of incoming nociceptive signals.'
The review also found that lots of participants could tell the difference between a placebo and cannabis
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