Supplement stacks / SAM-e + St Johns Wort

Can You Take SAM-e with St Johns Wort?

SAM-e and St Johns Wort: one interaction flagged, scored 3/10 (high risk). The count and score come from an AI-written analysis checked against our interaction rules, which can only make it stricter. Not medical advice.

Safety at a glance

High risk
Safety score3/10

This score comes from an AI-written analysis of the pair. Our interaction rules check it and can only make it stricter, never milder. Informational only: it can't account for your medications, conditions, or genetics.

What the AI-written analysis says

Taking SAM-e and St. John's Wort together may increase the risk of serotonin syndrome, especially in individuals taking other serotonergic medications. Both supplements have limited evidence regarding their efficacy and safety, and their interactions are not well-studied. Caution is advised, and consultation with a healthcare provider is recommended before combining these supplements.

Known interactions

high risk

Suggestion: Consult healthcare provider before use.

SAM-e

From the AI-written analysis.

Generally safe for most individuals; may cause gastrointestinal issues.

Typical dosage: 400-1600 mg daily, divided into doses.

Common side effects:
  • Nausea
  • Diarrhea
  • Insomnia
  • Anxiety
Warnings:
  • May interact with antidepressants and other serotonergic drugs.
  • Consult healthcare provider if taking other medications.

St. John's Wort

From the AI-written analysis.

Generally considered safe for short-term use; may cause photosensitivity.

Typical dosage: 300-900 mg daily, divided into doses.

Common side effects:
  • Gastrointestinal upset
  • Fatigue
  • Dry mouth
  • Dizziness
Warnings:
  • May interact with various medications, including antidepressants and anticoagulants.
  • Consult healthcare provider if taking other medications.

Timing

Both supplements can be taken in the morning to align with potential mood-enhancing effects.

Recommendations

  • Consult with a healthcare provider before starting SAM-e and St. John's Wort together.
  • Monitor for symptoms of serotonin syndrome, such as confusion, rapid heart rate, and increased blood pressure.

Watch out for

  • Risk of serotonin syndrome when combining SAM-e and St. John's Wort; consult healthcare provider.

Frequently asked questions

Can you take SAM-e and St Johns Wort together?

SAM-e and St Johns Wort: one interaction flagged, scored 3/10 (high risk). The count and score come from an AI-written analysis checked against our interaction rules, which can only make it stricter. Not medical advice.

What score does the SAM-e and St Johns Wort combination get?

The SAM-e and St Johns Wort combination is scored 3/10 (high risk). The score comes from an AI-written analysis checked against our interaction rules, which can only make it stricter. Not medical advice. Always confirm with a healthcare professional.

When should you take SAM-e and St Johns Wort?

Both supplements can be taken in the morning to align with potential mood-enhancing effects.

What should you watch out for when combining SAM-e and St Johns Wort?

Risk of serotonin syndrome when combining SAM-e and St. John's Wort; consult healthcare provider.

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What your DNA adds

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AI-written analysis generated August 11, 2026, checked by our interaction rules · How our analysis works