1 Definition of Hypericum perforatum

Meaning of Hypericum perforatum: An herbal product sold as an over-the-counter treatment for depression.

An herbal product sold as an over-the-counter treatment for depression. It is being studied for its ability to lessen certain side effects of cancer treatment. Also called St. John's wort.

For learning, not diagnosis. This glossary provides general educational information and is not a substitute for advice from a qualified healthcare professional. If you may be experiencing a medical emergency, contact local emergency services.