Cannabinoids are chemicals in cannabis that are extracted from the cannabis plant and made into an essential oil. Cannabinoid oil is taken orally, whereas cannabis is traditionally smoked.
The U.S. Food and Drug Administration has approved cannabinoids for treating cancer symptoms and the side effects of cancer treatment; however, cannabinoid oil has not been approved in the treatment of cancer. The National Cancer Institute explains that cannabinoids activate receptors in the central nervous system and the immune system to produce a drug-like effect in the body. Cannabinoid oil is also used to treat weight loss and poor appetite in patients with AIDS. The American Cancer Society supports further research into the use of cannabis and cannabinoid oil in the treatment of cancer.