Supplement stacks / St Johns Wort + Trazodone

Can You Take St Johns Wort with Trazodone?

St Johns Wort and Trazodone: 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 St. John's Wort with Trazodone may lead to potential interactions that could affect the efficacy of Trazodone and increase the risk of side effects. Both substances can influence serotonin levels, raising concerns about serotonin syndrome, especially at higher doses. Caution is advised, and consultation with a healthcare provider is essential before combining these substances.

Trazodone is a prescription medication. This page describes publicly documented interactions — it can't see your dose, your other prescriptions, or your labs. Discuss any supplement with the prescriber or pharmacist who manages this medication before combining.

Known interactions

high risk

Suggestion: Consult healthcare provider before use.

St. John's Wort

From the AI-written analysis.

Generally well-tolerated but can interact with various medications, including antidepressants.

Typical dosage: 300-900 mg daily (standardized extract)

Common side effects:
  • gastrointestinal upset
  • fatigue
  • dry mouth
  • dizziness
Warnings:
  • May reduce the effectiveness of Trazodone and other medications.
  • Consult healthcare provider before use, especially if taking other medications.

Trazodone

From the AI-written analysis.

Generally safe when used as prescribed; however, caution is advised due to potential interactions with other substances.

Typical dosage: As prescribed or as directed on the label

Common side effects:
  • drowsiness
  • dry mouth
  • dizziness
  • nausea
Warnings:
  • Monitor for increased sedation or serotonin syndrome when combined with other serotonergic agents.
  • Consult healthcare provider for dosage adjustments.

Timing

No timing arrangement makes this combination safe — see the warnings above.

Recommendations

  • Consult with a healthcare provider before combining St. John's Wort with Trazodone.
  • Consider alternative therapies for mood support that do not interact with Trazodone.

Watch out for

  • Monitor for signs of serotonin syndrome, such as confusion, rapid heart rate, and increased blood pressure.
  • If experiencing increased sedation or unusual side effects, contact a healthcare provider immediately.

Frequently asked questions

Can you take St Johns Wort and Trazodone together?

St Johns Wort and Trazodone: 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 St Johns Wort and Trazodone combination get?

The St Johns Wort and Trazodone 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 St Johns Wort and Trazodone?

No timing arrangement makes this combination safe — see the warnings above.

What should you watch out for when combining St Johns Wort and Trazodone?

Monitor for signs of serotonin syndrome, such as confusion, rapid heart rate, and increased blood pressure. If experiencing increased sedation or unusual side effects, contact a healthcare provider immediately.

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