Herbs

Chasteberry

Also called: vitex, vitex agnus-castus

Fruit of the chaste tree.

Why people take it
PMS, breast pain.
What the evidence says
Some evidence for PMS symptoms.
How it is usually taken
Usually 20 to 40 mg of extract a day for PMS.
Be careful
Avoid in pregnancy and with hormone treatments.
Medicines it can interact with
May affect the contraceptive pill, hormone treatments and dopamine-acting medicines.

Other herbs

Common questions

What is Chasteberry?

Fruit of the chaste tree.

Why do people take Chasteberry?

PMS, breast pain.

Does Chasteberry work?

Some evidence for PMS symptoms.

How much Chasteberry do people take?

Usually 20 to 40 mg of extract a day for PMS.

Is Chasteberry safe?

Avoid in pregnancy and with hormone treatments.

Does Chasteberry interact with medicines?

May affect the contraceptive pill, hormone treatments and dopamine-acting medicines.

Sources and further reading

Last reviewed 31 October 2026. Written by Satya Babu.

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