Supplement stacks / Paroxetine + St Johns Wort
Can You Take Paroxetine with St Johns Wort?
Paroxetine and St Johns Wort: two interactions 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
Taking St. John's Wort with paroxetine is not recommended due to potential interactions that may affect the efficacy of paroxetine and increase the risk of side effects. St. John's Wort is known to induce certain liver enzymes that can lower the levels of paroxetine in the body, potentially leading to reduced therapeutic effects. Additionally, both substances can influence serotonin levels, raising concerns for serotonin syndrome.
Paroxetine 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
St. John's Wort may reduce the effectiveness of paroxetine by inducing CYP450 enzymes.
Both may increase serotonin levels, raising the risk of serotonin syndrome.
Paroxetine
From the AI-written analysis.
Effective for depression and anxiety; may cause withdrawal symptoms if discontinued abruptly.
Typical dosage: As prescribed or as directed on the label
- Nausea
- Drowsiness
- Sexual dysfunction
- Do not discontinue without consulting a healthcare provider.
- Monitor for signs of serotonin syndrome.
St. John's Wort
From the AI-written analysis.
Generally considered safe for mild depression but can interact with many medications.
Typical dosage: 300-900 mg daily, divided into doses.
- Gastrointestinal upset
- Fatigue
- Allergic skin reactions
- Consult healthcare provider before use, especially with antidepressants.
- May cause photosensitivity.
Also commonly mentioned
These come up in questions about this combination. They are not part of the pair above. From the AI-written analysis.
Omega-3 Fatty Acids
Generally safe; may support mood and cognitive function.
Typical dosage: 1000-3000 mg daily.
- Fishy aftertaste
- Gastrointestinal discomfort
- Consult healthcare provider if on anticoagulants.
- Monitor for bleeding risks.
L-Theanine
Considered safe; may promote relaxation without sedation.
Typical dosage: 100-400 mg daily.
- Headache
- Dizziness
- Consult healthcare provider if taking other medications affecting mood.
- Monitor for excessive sedation.
Vitamin D3
Generally safe; supports mood and overall health.
Typical dosage: 600-2000 IU daily.
- Nausea
- Constipation
- Consult healthcare provider for high doses.
- Monitor blood levels if on long-term supplementation.
Timing
No timing arrangement makes this combination safe — see the warnings above.
Watch out for
- Combining two or more serotonergic substances can raise the risk of serotonin syndrome, a potentially serious reaction. Do not combine them without medical supervision, and seek care for agitation, confusion, tremor, sweating, rapid heartbeat, or high fever.
- Avoid combining St. John's Wort with paroxetine due to potential interactions.
- Consult healthcare provider before making any changes to medication or supplement regimen.
Frequently asked questions
Can you take Paroxetine and St Johns Wort together?
Paroxetine and St Johns Wort: two interactions 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 Paroxetine and St Johns Wort combination get?
The Paroxetine 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 Paroxetine and St Johns Wort?
No timing arrangement makes this combination safe — see the warnings above.
What should you watch out for when combining Paroxetine and St Johns Wort?
Combining two or more serotonergic substances can raise the risk of serotonin syndrome, a potentially serious reaction. Do not combine them without medical supervision, and seek care for agitation, confusion, tremor, sweating, rapid heartbeat, or high fever. Avoid combining St. John's Wort with paroxetine due to potential interactions. Consult healthcare provider before making any changes to medication or supplement regimen.
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Not medical advice
AI-written analysis generated August 11, 2026, checked by our interaction rules · How our analysis works