An observational study of CBD treatment reported an improvement in self-reported quality of life measures for people with non-cancer-related pain but there was no statistically significant improvement in those with cancer-related pain or with neurological symptoms. 8
CBD can interact with other medications used for epilepsy and some serious side effects have been reported, notably, a decrease in liver function when given to people already taking valproate.
Anxiety scores decreased in a large case series of 72 patients, with 57 patients (79.2%) reporting decreased scores within the first month after CBD treatment. 9
Cannabis is a plant, and there are two main types, Cannabis Indica and Cannabis Sativa. Both marijuana and CBD can be derived from both types, but hemp is only derived from Cannabis Sativa. By law, hemp must contain no more than 0.3% THC (the oil in marijuana that gives you a high) to be called hemp, otherwise, growers are at risk of prosecution under federal law. Hemp is a great resource for making 100% biodegradable, environmentally friendly products such as clothing, packaging, biofuel, building materials, and paper.
Pretreatment with 300mg CBD significantly relieved anxiety in 57 healthy males who undertook a simulated public speaking test. However, dosages of 150mg CBD and 600mg CBD did not make any difference to the men’s anxiety levels. 7
As CBD grows in popularity, so does the research on it but there are currently few clinical studies on the effects of CBD oil. As such, some of these claims are better supported by studies than others.
Here is just some of what the current evidence says.
To use CBD oil, place one or more drops under the tongue and hold the dose there for 30 to 60 seconds without swallowing. Capsules and gummies are easier to dose, although they tend to be more costly. CBD sublingual sprays are available as well.
For this study, nine healthy men took either 600 mg of CBD or the same dose of a placebo. According to the researcher, those treated with CBD had lower blood pressure before and after exposure to stressful stimuli (including exercise or extreme cold).
The findings suggest that CBD oil may be a suitable complementary therapy for people whose hypertension is complicated by stress and anxiety. However, there is no evidence that CBD oil can treat hypertension on its own or prevent hypertension in people at risk. While stress is known to complicate high blood pressure, it cannot cause hypertension.