About st john s wort dry extract
Herbal antidepressant
Used for
- Short-term treatment of mild to moderate depression
Usual adult dose
Product-specific dosing varies; commonly 250–500 mg extract twice daily, depending on extract standardization.
Common side effects
- Stomach upset
- Dizziness or fatigue
- Dry mouth
- Increased sensitivity to sunlight
Important warnings
- Can worsen depression or delay effective treatment.
- Avoid combining with prescription antidepressants unless supervised.
- May reduce effectiveness of many medicines, including contraceptives and transplant drugs.
- Avoid excessive sun exposure; extract strength and composition vary.
Pregnancy
Safety is uncertain; generally not recommended during pregnancy.
Breastfeeding
Safety is uncertain; generally not recommended while breastfeeding.
Interactions
- Can cause serotonin toxicity with antidepressants and other serotonergic medicines.
- May reduce levels of birth control pills, warfarin, HIV medicines, and transplant medicines.
- Can interact with seizure medicines and some cancer treatments.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.