Supplement stacks / Melatonin + St Johns Wort
Can You Take Melatonin with St Johns Wort?
Melatonin and St. John's Wort can be taken together, but caution is advised due to potential interactions. Melatonin is primarily used for sleep regulation, while St. John's Wort is often used for mood enhancement. Both supplements have limited evidence quality, and their interactions are not fully understood. Consulting a healthcare provider is recommended before combining these supplements.
Conservative, AI-assisted reading of publicly available medical sources (NIH, Mayo Clinic, WebMD, Examine.com). Informational only — it can't account for your medications, conditions, or genetics.
St. John's Wort may affect the metabolism of melatonin, potentially altering its effectiveness.
Generally considered safe for short-term use; long-term safety is less established.
Typical dosage: 1-5 mg taken 30-60 minutes before bedtime
- Drowsiness
- Dizziness
- Headache
- May cause daytime drowsiness; avoid driving after use.
- Consult healthcare provider if pregnant or nursing.
Generally safe for most people; may cause photosensitivity in some individuals.
Typical dosage: 300-900 mg daily, divided into doses
- Gastrointestinal upset
- Fatigue
- Dry mouth
- Can interact with various medications, including antidepressants and birth control.
- Consult healthcare provider if pregnant or nursing.
Melatonin should be taken in the evening for sleep support, while St. John's Wort can be taken in the morning or early afternoon to support mood.
- Consult a healthcare provider before starting this combination.
- Monitor for any unusual side effects when taking both supplements.
- Take melatonin at least 4 hours apart from St. John's Wort to minimize potential interaction.
Can you take Melatonin and St Johns Wort together?
Melatonin and St. John's Wort can be taken together, but caution is advised due to potential interactions. Melatonin is primarily used for sleep regulation, while St. John's Wort is often used for mood enhancement. Both supplements have limited evidence quality, and their interactions are not fully understood. Consulting a healthcare provider is recommended before combining these supplements.
How safe is the Melatonin and St Johns Wort combination?
Our analysis of publicly available medical sources scores this combination 6/10 (medium risk). This is an informational estimate, not medical advice — always confirm with a healthcare professional.
When should you take Melatonin and St Johns Wort?
Melatonin should be taken in the evening for sleep support, while St. John's Wort can be taken in the morning or early afternoon to support mood.
What should you watch out for when combining Melatonin and St Johns Wort?
Take melatonin at least 4 hours apart from St. John's Wort to minimize potential interaction.
Taking more than these two? Run your complete supplement list — plus any medications — through the live checker for a combined analysis.
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Analysis generated August 11, 2026 · Sources include NIH, Mayo Clinic, WebMD, and Examine.com · How our analysis works