This information explains what St John's wort is used for, how it works, possible side effects and interactions with other medicines.
Depression self-help organisation made up of individuals and local groups.
Regulates medicines in the UK and runs the Yellow Card scheme for reporting side effects.
Produces guidelines on best practice in healthcare.
Information about health problems and treatments, including details of local NHS services in England.
116 123 (freephone)
Chris, Freepost RSRB-KKBY-CYJK
PO Box 90 90
Stirling FK8 2SA
Samaritans are open 24/7 for anyone who needs to talk. You can visit some Samaritans branches in person. Samaritans also have a Welsh Language Line on 0808 164 0123 (7pm–11pm every day).
This information was published in January 2020. We will revise it in 2023.
References are available on request. If you would like to reproduce any of this information, see our page on permissions and licensing.