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CBD Oil for Cancer

Written by: Lukas Beckmann

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Time to read 7 min

Using hemp oil against cancer

In this article, we'll explain how cannabis oil can help as a supportive measure alongside conventional therapies for lung cancer or other types of cancer. Cannabis oil is known primarily for its pain-reducing1, anti-inflammatory2, relaxing, and antispasmodic effects, which can be helpful for many illnesses or problems. However, CBD can do even more. Several studies have shown that hemp oil can successfully combat cancer as an adjunct to conventional therapy. A treatment with CBD is not a substitute for conventional therapy, but it can support it or substitute it if conventional therapy is not successful.3


The effect of cannabidiol on cancer cells

The active ingredient cannabidiol (CBD) from the hemp plant can interfere with and disrupt the metabolism of cancer-affected cells. This disrupts internal communication within the cell and makes it difficult for the cell to survive. This property, especially in combination with additional harmful effects on the cells, can support chemotherapy or radiation therapy. Thus, the hemp extract can promote and intensify the effects of applied therapies.


CBD study in cancer patients

British scientists at St. George’s University of London examined 199 cancer patients who took CBD in the form of 5% full-spectrum oil over a period of at least six months, sometimes exclusively, but sometimes in addition to other medications.4 Many of the study participants showed a reduction in metastases or a slowdown in the spread of cancer cells. No effect was observed in some patients. However, none of the participants experienced side effects. Particularly astonishing was the effect in the case of a 5-year-old child whose previous therapies for a brain tumor had shown no improvement. They were given only the hemp extract during the study period, during which the tumor mass was reduced by 60% within the scope of the study.


CBD for side effects of conventional cancer therapies

Apart from the beneficial properties of hemp extract for fighting cancer, its intake can also combat the consequences and side effects of conventional therapies, thereby leading to an improvement in well-being. For example, chemotherapy or radiation therapy often causes mucositis. CBD can be a helpful remedy due to its anti-inflammatory2 and pain-relieving1 effects. What also often accompanies these therapies are pain, sleep disturbances, anxiety, and depression5. In these cases, full-spectrum CBD hemp extract can help to alleviate symptoms. The relaxing, pain-relieving, and calming properties come into play. The active ingredient can therefore, on the one hand, contribute to attacking cancer cells or support this process, and on the other hand, patients report an improvement in the side effects and consequences of radiation or chemotherapy.


Side effects of chemotherapy

During chemotherapy, strong drugs are administered orally and intravenously. The drugs are intended to help prevent the spread of cancer to other parts of the body, slow the growth of tumors, and also kill cancer cells. But even though chemotherapy is an effective treatment method, some serious side effects occur. This is because, in addition to cancer cells, normal, healthy body cells are also attacked by the strong chemotherapeutic agents.

Common side effects include:


  • Fever and chills
  • Fatigue
  • Nausea and vomiting
  • Sore mouth
  • Constipation/diarrhea
  • Loss of appetite
  • Difficulty swallowing

To name just a few. The severity and extent of these side effects vary from person to person.


CBD for treating chemotherapy side effects

Cannabis oil is used to suppress the feeling of nausea that often accompanies therapy, thereby making everyday life noticeably easier. Furthermore, a recent case study showed that cancer patients who experienced persistent pain reported a significant reduction in their pain after 2 weeks of CBD treatment. In addition, CBD is said to prevent weight loss and loss of appetite in patients after chemotherapy. The anti-inflammatory properties also help patients reduce swelling in their hands and feet. In summary, hemp oil can be helpful against cancer, especially in chemotherapy, as a supplementary treatment to combat side effects and positively influence and enhance the therapy.3


Rick Simpson Oil – a pioneer in the international hemp scene

Rick Simpson is now one of the most famous advocates for cannabis and is known for the cannabis oil (THC oil) he produces. However, Rick Simpson Cannabis Oil (RSO) not only contains CBD but also THC, making it illegal in most countries. Presumably, the healing effect attributed to the oil can also be achieved with pure CBD oil – i.e., without THC.


After Simpson developed skin cancer and read a lot about the positive effects of cannabis on cancer, he had the idea to test for himself how much truth there was behind these statements. He used his self-made cannabis oil, applied it to the affected skin areas, and covered them with a bandage. On his website, the Canadian claims that the skin changes had disappeared after just four days and the skin cancer was cured. Of course, doctors did not want to believe such a miracle cure, but the facts spoke for themselves. Thus, the effect of RSO quickly spread, and other people were able to benefit from it. According to his own statements, Simpson also helped many other cancer patients with his oil.


Since then, he has offered his THC oil, known as “Rick Simpson Oil” or “Phoenix Tears”. He finally gained worldwide fame primarily through the successful documentary “Run from the cure”. He also impressively recorded his experiences in his book “Phoenix Tears – The Rick Simpson Story”.


CBD in palliative care

Palliative medicine is used when patients suffer from a progressive and incurable disease, leading to a foreseeable shortened life expectancy. The goal is then to alleviate pain and burdens, make the remaining lifespan as comfortable as possible, and create the best possible quality of life.


Treating complaints

Patients in palliative care experience a range of complaints that can be alleviated with the help of CBD. Many patients suffer from pain, which is often chronic1 and thus frequently leads to sleep problems. Anxiety, inner restlessness, loss of appetite, and depression also often occur. Cannabidiol can be helpful in several ways and create a more pleasant daily life for patients. Thanks to its pain-relieving effect, conventional painkillers, which place additional strain on the body, can often even be reduced. The advantage of the active ingredient CBD is that there are no known serious side effects and an overdose is not possible. Therefore, it does not lead to further weakening of the body. Furthermore, the fight against complaints such as inner restlessness and anxiety is particularly important to take seriously, as they particularly impair the psychological well-being of patients and significantly reduce their quality of life. CBD can counteract this with its calming effect.


Sounds interesting?

Try CBD oil now.

Discover CBD oils now

Sounds interesting?

Try CBD oil now.

Discover CBD oils now

Sources and Studies

1Xiong, W., Cui, T., Cheng, K., Yang, F., Chen, S. R., Willenbring, D., Guan, Y., Pan, H. L., Ren, K., Xu, Y., & Zhang, L. (2012). Cannabinoids suppress inflammatory and neuropathic pain by targeting α3 glycine receptors. The Journal of experimental medicine, 209(6), 1121–1134. https://doi.org/10.1084/jem.20120242



The 2012 study investigated how non-psychoactive cannabinoids potentiate glycine receptors (GlyRs) to alleviate chronic pain. It was found that the administration of cannabidiol (CBD) significantly suppressed chronic inflammatory and neuropathic pain without causing apparent tolerance.



2Mukhopadhyay, P., Rajesh, M., Horváth, B., Bátkai, S., Park, O., Tanchian, G., Gao, R. Y., Patel, V., Wink, D. A., Liaudet, L., Haskó, G., Mechoulam, R., & Pacher, P. (2011). Cannabidiol protects against hepatic ischemia/reperfusion injury by attenuating inflammatory signaling and response, oxidative/nitrative stress, and cell death. Free radical biology & medicine, 50(10), 1368–1381. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3081988/



The 2011 study investigated the effects of cannabidiol (CBD) for liver ischemia-reperfusion injury (I/R). The results of the studies showed that CBD significantly reduced the extent of liver inflammation, oxidative/nitrative stress, and cell death. CBD may represent a novel protective strategy against I/R injury by attenuating key inflammatory pathways and oxidative/nitrative tissue damage.



Hammell, D. C., Zhang, L. P., Ma, F., Abshire, S. M., McIlwrath, S. L., Stinchcomb, A. L., & Westlund, K. N. (2016). Transdermal cannabidiol reduces inflammation and pain-related behaviours in a rat model of arthritis. European journal of pain (London, England), 20(6), 936–948. https://doi.org/10.1002/ejp.818



This study investigated the efficacy of CBD in reducing inflammation and pain associated with arthritis. The study showed that transdermal CBD gel significantly reduced joint swelling, limb posture as an assessment of spontaneous pain, immune cell infiltration, and synovial membrane thickening in a dose-dependent manner.



3Dariš, B., Tancer Verboten, M., Knez, Ž., & Ferk, P. (2019). Cannabinoids in cancer treatment: Therapeutic potential and legislation. Bosnian journal of basic medical sciences, 19(1), 14–23. https://doi.org/10.17305/bjbms.2018.3532



A 2019 literature review shows that several studies found that CBD extracts can help reduce the viability of cancer cells and prevent the proliferation of cancer cells.



4Liu, W. M., Fowler, D. W., & Dalgleish, A. G. (2010). Cannabis-derived substances in cancer therapy--an emerging anti-inflammatory role for the cannabinoids. Current clinical pharmacology, 5(4), 281–287. https://doi.org/10.2174/157488410793352049



5Lake, S., Kerr, T., Buxton, J., Walsh, Z., Marshall, B. D., Wood, E., & Milloy, M.-J. (2020). Does cannabis use modify the effect of post-traumatic stress disorder on severe depression and suicidal ideation? Evidence from a population-based cross-sectional study of Canadians. Journal of Psychopharmacology, 34(2), 181–188. https://doi.org/10.1177/0269881119882806



In 2020, the Journal of Psychopharmacology published the results of a study showing that post-traumatic stress disorder (PTSD) increases the risk of depression and suicidal ideation. Of approximately 24,000 respondents, 1.7% suffered from PTSD. 28.2% of them (106 people) consumed cannabis. It was found that cannabis use could mitigate the potential consequences of post-traumatic stress disorder, i.e., depression and suicide.