... , together with free flavonoids including apigenin, luteolin, quercetin, and kaempferol. In Europe, passionflower is required to contain not less than 0 ... -anxiety, anti-inflammatory, antispasmodic, cough suppressant, aphrodisiac, cough suppressant, central nervous system depressant, diuretic, hypotensive (lowers blood pressure), sedative. Passion Flower extract ...