which are used in the treatment of Parkinson's disease (PD) in augmentation of L-DOPA ((Levodopa; Sinemet, Parcopa, Atamet, Stalevo, Madopar, Prolopa, etc.)) to block the peripheral conversion of dopamine thereby inhibiting undesirable side effects , and as sympatholytic or antihypertensive agents. Others such as hyperforin and adhyperforin (both found in Hypericum