Herbs

Passionflower

Also called: passiflora

A climbing plant used for calm.

Why people take it: Anxiety, sleep.
What the evidence says: Small studies only.
How it is usually taken: Usually tea or extracts of 90 to 400 mg a day.
Be careful: Drowsiness; not in pregnancy.
Medicines it can interact with: Adds to drowsiness with sedatives and alcohol.

Other herbs

Echinacea Elderberry Garlic extract Ginger Peppermint oil Milk thistle Saw palmetto St John's wort Valerian Chamomile Lemon balm Kava Rhodiola Ginkgo Moringa Fenugreek Cinnamon Black seed Licorice Boswellia

Common questions

What is Passionflower?

A climbing plant used for calm.

Why do people take Passionflower?

Anxiety, sleep.

Does Passionflower work?

Small studies only.

How much Passionflower do people take?

Usually tea or extracts of 90 to 400 mg a day.

Is Passionflower safe?

Drowsiness; not in pregnancy.

Does Passionflower interact with medicines?

Adds to drowsiness with sedatives and alcohol.

Sources and further reading

Last reviewed 31 October 2026. Written by Satya Babu.

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