Most human studies of CBD have been done on people who have seizures, and the FDA recently approved the first CBD-based drug, Epidiolex, for rare forms of epilepsy. Clinical trials for other conditions are promising, but tiny. In one Brazilian study published in 2011 of people with generalized social anxiety disorder, for example, taking a 600-mg dose of CBD (higher than a typical dose from a tincture) lessened discomfort more than a placebo, but only a dozen people were given the pill.
Under federal law, cannabis (from which both CBD and marijuana are derived) is illegal everywhere, although the laws against it aren’t generally enforced in states that have legalized marijuana. Some manufacturers claim that CBD culled from legally imported industrial hemp, which has little to no THC, is fine to ship across the U.S., but many experts disagree, noting that because hemp comes from the same species as marijuana, cannabis sativa, all CBD falls under the DEA’s Schedule 1 designation. “This creative interpretation of the law runs afoul of reality,” says the Brookings Institution, a Washington, DC, think tank.
People who experience psychosis may produce too much or even too little cannabinoids (from overactive dopamine receptors). CBD is milder than our internal cannabinoids and helps to re-establish a balance of cannabinoids in the brain. CBD also helps lower inflammation, which is often increased in schizophrenia. THC, on the other hand, is stronger than our internal cannabinoids (anandamide and 2-AG), this way potentially triggering psychosis [46, 48].
Unless you've been tuned out to the beauty world these last few months, odds are you've heard of an ingredient called CBD (short for cannabidiol). The buzzy ingredient, which, no, won't get you high, even if ingested as an oral tincture or supplement, has now evolved into a bonafide skin-care trend, with brands offering a luxe spin on what used to be a highly niche category. "With an impressive and evergrowing number of studies finding CBD to be a powerful antioxidant and anti-inflammatory among many other properties, it is now being used to treat pain, anxiety, spasms, and much more," New York City-based aesthetician Jeannel Astarita tells Allure.
Low Blood Pressure and Lightheadedness – an effect of CBD that may seem somewhat counterintuitive, an almost immediate (though small) decrease in blood pressure has been reported at the exposure to high doses, causing the associated lightheadedness, albeit not for long periods. Nevertheless, it could be significant for individuals taking blood pressure medication.
A study highlighting this was performed approximately one decade ago. The study found a link between IBS sufferers and clinical endocannabinoid deficiency, which relates back to the fact that the system directly impacts intestinal motility and function. When CBD was used to activate and regulate the endocannabinoid system, sufferers of IBS saw significant symptom improvement. (42)