This 2020 systematic review was to evaluate Passiflora incarnata in terms of its neuropsychiatric effects. It included nine clinical trials. The duration of the studies included in the analysis varied widely, from one day up to 30 days. Study participants were no less than 18 years old. In each of the papers, the effects of passionflower were measured by using a number of different tests and scales. The majority of studies reported reduced anxiety levels following the administration of Passiflora incarnata preparations, with the effect less evident in people with mild anxiety symptoms. No adverse effects, including memory loss or collapse of psychometric functions, were observed.
References:
Janda, K., Wojtkowska, K., Jakubczyk, K., Antoniewicz, J., & Skonieczna-Żydecka, K. (2020). Passiflora incarnata in Neuropsychiatric Disorders-A Systematic Review. Nutrients, 12(12), 3894. https://doi.org/10.3390/nu12123894
