During the study, participants were administered 150mg, 300mg, 600mg CBD or a placebo. During each subject’s simulated public speaking, the subjects were asked how they felt on the Visual Analogue Mood Scale. Their systolic and diastolic blood pressure and heart rate were also taken six times during their speech. The participants who ingested 300mg CBD demonstrated significantly reduced anxiety during their speeches, in comparison to, the placebo. There were no significant differences on the Visual Analogue Mood Scale for subjects who received CBD at 150mg, 600mg and the placebo.
This study confirmed that CBD has the same effects as anti-anxiety medications in humans and animals. The next step will be to determine the optimal therapeutic dosage of CBD so that it can be used at a clinical level to help those who suffer from anxiety disorders.