Supplement stacks / Kanna + St Johns Wort
Can You Take Kanna with St Johns Wort?
Kanna 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
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
Combining Kanna and St. John's Wort may pose potential risks due to their effects on serotonin levels and unknown interactions. Both supplements have limited evidence regarding their safety and efficacy, and caution is advised when using them together.
Known interactions
Kanna
From the AI-written analysis.
Generally well-tolerated but limited research on long-term safety; may affect mood and anxiety levels.
Typical dosage: 50-200 mg daily, depending on form
- Nausea
- Headache
- Dizziness
- Dry mouth
- Consult healthcare provider if taking other medications, especially those affecting serotonin.
St. John's Wort
From the AI-written analysis.
Generally considered safe for short-term use; however, it can interact with various medications and may cause side effects.
Typical dosage: 300-900 mg daily, divided into doses
- Gastrointestinal upset
- Fatigue
- Dizziness
- Allergic skin reactions
- May interact with antidepressants, anticoagulants, and other medications; consult healthcare provider before use.
Timing
No timing arrangement makes this combination safe — see the warnings above.
Recommendations
- Consult with a healthcare provider before combining these supplements.
- Monitor for any unusual side effects or mood changes.
Watch out for
- Due to potential serotonin modulation, avoid combining with other serotonergic agents.
- No timing arrangement makes this combination safe — see the warnings above.
Frequently asked questions
Can you take Kanna and St Johns Wort together?
Kanna 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 Kanna and St Johns Wort combination get?
The Kanna 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 Kanna and St Johns Wort?
No timing arrangement makes this combination safe — see the warnings above.
What should you watch out for when combining Kanna and St Johns Wort?
Due to potential serotonin modulation, avoid combining with other serotonergic agents. No timing arrangement makes this combination safe — see the warnings above.
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Not medical advice
AI-written analysis generated August 11, 2026, checked by our interaction rules · How our analysis works