Penn Herb Wellness Guide
St. John’s WortFind Products
Also indexed as:Hypericum perforatum, Saint John’s Wort, St. John's Wort
© Steven FosterBotanical names:
Hypericum perforatumInteractions with Supplements, Foods, & Other Compounds
Caution: It is likely that there are many drug interactions with St. John's wort that have not yet been identified. St. John's wort stimulates a drug-metabolizing enzyme (cytochrome P450 3A4) that metabolizes at least 50% of the drugs on the market.11 Therefore, it could potentially cause a number of drug interactions that have not yet been reported. People taking any medication should consult with a doctor or pharmacist before taking St. John's wort.
Interactions with Medicines
Certain medicines interact with this supplement.
Types of interactions:beneficial= Beneficialadverse= Adversecheck= Check
 Replenish Depleted Nutrients
| none |
| Reduce Side Effects | none |
| Support Medicine | none |
 Reduces Effectiveness
| |
| Potential Negative Interaction
|