Hyperforin is a cyclic terpene ketone that is a prenylated carbobicyclic acylphloroglucinol derivative produced by St. John's Wort, Hypericum perforatum. It has a role as a GABA reuptake inhibitor, a plant metabolite, an anti-inflammatory agent, an antidepressant, an antibacterial agent, an antineoplastic agent and an apoptosis inducer. It is a cyclic terpene ketone, a sesquarterpenoid and a carbobicyclic compound.