People take passion flower to ease occasional tension and encourage restful sleep. You can drink it as a tea or take it in capsules. Many use it in the evening or right before bed. It sometimes appears alongside other calming herbs such as lemon balm or valerian.
Passion flower can cause drowsiness, dizziness, or confusion. It may interact with sedatives, blood pressure drugs, and MAOIs. Avoid it during pregnancy and while breastfeeding.