Herbs

Kava

Also called: kava kava, piper methysticum

A Pacific island plant used for anxiety.

Why people take it
Anxiety.
What the evidence says
Some evidence for anxiety.
How it is usually taken
Not recommended because of liver damage reports; banned or restricted in several countries.
Be careful
Linked to serious liver damage; banned or restricted in several countries. Avoid alcohol and liver disease.
Medicines it can interact with
Very risky with alcohol, paracetamol and other liver-affecting medicines; adds to sedatives.

Other herbs

EchinaceaElderberryGarlic extractGingerPeppermint oilMilk thistleSaw palmettoSt John's wortValerianChamomileLemon balmPassionflowerRhodiolaGinkgoMoringaFenugreekCinnamonBlack seedLicoriceBoswellia

Common questions

What is Kava?

A Pacific island plant used for anxiety.

Why do people take Kava?

Anxiety.

Does Kava work?

Some evidence for anxiety.

How much Kava do people take?

Not recommended because of liver damage reports; banned or restricted in several countries.

Is Kava safe?

Linked to serious liver damage; banned or restricted in several countries. Avoid alcohol and liver disease.

Does Kava interact with medicines?

Very risky with alcohol, paracetamol and other liver-affecting medicines; adds to sedatives.

Sources and further reading

Last reviewed 31 October 2026. Written by Satya Babu.

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