Supplement stacks / St Johns Wort + Verapamil

Can You Take St Johns Wort with Verapamil?

St. John's Wort may interact with verapamil, potentially affecting its efficacy. Caution is advised, and consultation with a healthcare provider is essential before combining these substances.

Safety at a glance
Medium risk
Safety score4/10

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.

Known interactions
medium

Suggestion: Consult healthcare provider before use.

St. John's Wort

Generally safe for most individuals; however, it can cause photosensitivity and may interact with various medications.

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

Common side effects:
  • Gastrointestinal upset
  • Fatigue
  • Dry mouth
  • Dizziness
Warnings:
  • May reduce the effectiveness of certain medications, including verapamil; consult healthcare provider.
  • Avoid excessive sun exposure.
Verapamil

Generally well-tolerated; monitor for side effects, especially in patients with heart conditions.

Typical dosage: 80-480 mg daily, depending on formulation.

Common side effects:
  • Constipation
  • Dizziness
  • Headache
  • Nausea
Warnings:
  • Monitor heart rate and blood pressure regularly; consult healthcare provider if experiencing significant side effects.
Timing

St. John's Wort can be taken in the morning, but ensure to space it from verapamil if advised by a healthcare provider.

Recommendations
  • Consult with a healthcare provider before starting St. John's Wort while on verapamil.
  • Consider alternative mood support supplements that do not interact with verapamil.
Watch out for
  • St. John's Wort may reduce the effectiveness of verapamil; consult healthcare provider before use.
Frequently asked questions

Can you take St Johns Wort and Verapamil together?

St. John's Wort may interact with verapamil, potentially affecting its efficacy. Caution is advised, and consultation with a healthcare provider is essential before combining these substances.

How safe is the St Johns Wort and Verapamil combination?

Our analysis of publicly available medical sources scores this combination 4/10 (medium risk). This is an informational estimate, not medical advice — always confirm with a healthcare professional.

When should you take St Johns Wort and Verapamil?

St. John's Wort can be taken in the morning, but ensure to space it from verapamil if advised by a healthcare provider.

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

St. John's Wort may reduce the effectiveness of verapamil; consult healthcare provider before use.

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Analysis generated August 11, 2026 · Sources include NIH, Mayo Clinic, WebMD, and Examine.com · How our analysis works