Passionflower (passiflora incarnata) originally grows in Asia and North-America, but is cultivated almost everywhere else. The most important active ingredients belong to the harmala alkaloids, such as harmine and harmaline.

Effects
Passion flower is used as a mild sedative and as a sleeping aid. Interestingly, it can act as both a sedative and a stimulant. It is sometimes used as a hallucinogen at very high doses, though its primary therapeutic use is as a sedative.

Usage
Passion flower is usually prepared as tea. The usual dose is 0.3 to 0.5 grams of extract per day. For a strong hallucinogenic tea steep 3-4 grams of extract in hot water for half an hour.

Warnings
Pregnant women should avoid Passion flower. Since it is a sedative, Passion flower may affect the ability to drive or operate heavy machinery, so it should be used with caution when engaging in these activities.

Passionflower herb is an MAO-inhibitor. When you combine it with particular psychoactive products or food, it can cause headache, sickness, or worse.