Herbs

Valerian

Also called: valerian root

A root used for sleep and calm.

Why people take it
Sleep, anxiety.
What the evidence says
Evidence is mixed and weak.
How it is usually taken
Usually 300 to 600 mg of extract 30 minutes to 2 hours before bed.
Be careful
Drowsiness; do not drive. Do not combine with sleeping pills or alcohol.
Medicines it can interact with
Adds to drowsiness with alcohol, sedatives and antihistamines.

Other herbs

EchinaceaElderberryGarlic extractGingerPeppermint oilMilk thistleSaw palmettoSt John's wortChamomileLemon balmPassionflowerKavaRhodiolaGinkgoMoringaFenugreekCinnamonBlack seedLicoriceBoswellia

Common questions

What is Valerian?

A root used for sleep and calm.

Why do people take Valerian?

Sleep, anxiety.

Does Valerian work?

Evidence is mixed and weak.

How much Valerian do people take?

Usually 300 to 600 mg of extract 30 minutes to 2 hours before bed.

Is Valerian safe?

Drowsiness; do not drive. Do not combine with sleeping pills or alcohol.

Does Valerian interact with medicines?

Adds to drowsiness with alcohol, sedatives and antihistamines.

Sources and further reading

Last reviewed 31 October 2026. Written by Satya Babu.

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