St John's wort - Hypericum perforatum

This information explains what St John's wort is used for, how it works, possible side effects and interactions with other medicines.

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Useful contacts

Mind Infoline

0300 123 3393 (Monday to Friday 9am to 6pm)
[email protected]
Details of local Minds and other legal services, and Mind's Legal Advice Line. Language Line is available for talking in a language other than English.

Anxiety UK

0844 477 5774
Support, help and information for those with anxiety disorders.

British Herbal Medicine Association

0845 680 1134
Advice about herbal medicines.

Depression UK
A self-help organisation made up of individuals and local groups.

Medicines and Healthcare Products Regulatory Agency (MHRA)
Information about herbal medicines registration and registered products.
Visit to report side effects and withdrawal effects.

National Institute for Health and Care Excellence (NICE)

0845 003 7780
Guidance on health and social care

NHS choices
Information on health and local services.


Chris, PO Box 9090, Sterling FK8 2SA
helpline: 116 123
[email protected]
A 24-hour telephone helpline for people struggling to cope.


References available on request – please contact [email protected]


This information was published in January 2017. We will revise it in 2020.

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