There is no evidence that CBD oil can be used to treat cancer in people. CBD does show promise for the management of some cancer related symptoms, including pain and anxiety, however, more research into appropriate amounts of CBD and its effects on humans is necessary.
One study of cannabis users found they had a lower risk of bladder cancer, but their risk of developing prostate cancer increased.
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Walking along your local high street, you’ve probably noticed shops selling CBD oil, along with all sorts of health claims – including the possibility that it could even be used to combat cancer. But could this be true? Could cannabis really cure cancer? We asked our experts to delve into the research.
There is some evidence that CBD oil could be effective against some rare childhood epilepsies. But again, more data is needed before we can draw any firm conclusions. Studies also show that CBD oil could be beneficial for managing anxiety and insomnia in some people, and early research also suggests a possible use of CBD for the treatment of certain types of pain.
Some cannabinoids inhibit the growth of tumour cells in test tubes and mice, but others encourage growth. Human studies are still small and hard to come by.
Quality, cleanliness and regulation are the biggest concerns.
Second, if a lab produces both CBD and THC products, there can be cross-contamination — whether it’s through extraction, handling or packaging.
In terms of purity, THC and CBD are both extracted from hemp and marijuana using essentially similar processes. But trace amounts of THC could still end up in CBD oil. And if the THC is at a high enough concentration, it could produce the psychoactive effects that THC is known for.
There have been reports that cannabinoids like THC and CBD may be helpful for nausea and vomiting and anorexia, as well as neuropathy, anxiety, depression and insomnia. Synthetic cannabinoids like dronabinol have been approved for use with chemotherapy-induced nausea and vomiting, but have not been shown to be superior to conventional anti-nausea medications.
The main difference is that hemp has far less THC than a typical marijuana plant. And unlike THC, CBD is not a psychoactive agent, so there’s less possibility that it will cause the same mental confusion, drowsiness or hallucinations that often come with THC.
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There are many videos and anecdotes online claiming that people have been completely cured of cancer with cannabis, hemp/cannabis oil or other cannabis derivatives.
I am very pleased to hear your mum’s condition has improved recently.
Despite what these sources may claim, it’s impossible to tell whether these patients have been ‘cured’ by cannabis or not. There is usually no information about their medical diagnosis, stage of disease, what other cancer treatments they had, or the chemical make-up of their treatment. These sources also only publish the “success stories”, and don’t share how many people who used cannabis or its derivatives had no benefit, or worse, were potentially harmed.
We’re supportive of properly conducted scientific research into cannabis and its derivatives that could benefit cancer patients. Many researchers are actively exploring this approach, and Cancer Research UK is supporting, and will continue to support, scientifically robust research into cannabis and cannabinoids that reaches the high-quality standards set by our funding committees.