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Supplement × Prescription·Evidence index

Sertraline and St. John's Wort: what the research found

PubMed indexes 8 records that name Sertraline and St. John's Wort together, either in the title or in an interaction, co-administration, or pharmacokinetic context. The key findings come first, in the authors’ own words, followed by every study with its design and PubMed link.

A summary of published research, not medical advice. A pharmacist can check any combination against your full list of medicines and supplements.

Key findings

What the studies concluded.

Reviews and human studies first. Each quote is the authors’ own conclusion about their study, not a NutriStack assessment, and a single study is not a consensus.

“The antidepressants bupropion and nortriptyline aid long-term smoking cessation. Adverse events with either medication appear to rarely be serious or lead to stopping medication. Evidence suggests that the mode of action of bupropion and nortriptyline is independent of their antidepressant effect and that they are of similar efficacy to nicotine replacement.”

Hughes et al. · 2014 · Review or meta-analysis · details

“Numerous interactions between herbal medicines and conventional drugs have been documented. While the significance of many interactions is uncertain, several interactions, particularly those with St John's wort, may have serious clinical consequences.”

Izzo et al. · 2009 · Review or meta-analysis · details

“There is no difference between hypericum and placebo, regardless of the assumption about the missing data process. There is a significant difference between sertraline and placebo with some statistical-methods used. It is important to conduct an analysis that takes account of missing data using valid statistically principled methods. The assumptions about the missing data process could influence the results.”

The research

8 studies naming Sertraline and St. John's Wort.

Strongest relevance first: papers naming both substances in the title, then human trials and systematic reviews.

The impact of missing data on clinical trials: a re-analysis of a placebo controlled trial of Hypericum perforatum (St Johns wort) and sertraline in major depressive disorder.

Psychopharmacology · 2014 · PMID 24232445

Randomized Controlled TrialResearch Support, N.I.H., Extramural

“There is no difference between hypericum and placebo, regardless of the assumption about the missing data process. There is a significant difference between sertraline and placebo with some statistical-methods used. It is important to conduct an analysis that takes account of missing data using valid statistically principled methods. The assumptions about the missing data process could influence the results.”

Grobler et al. · Authors' conclusion

Names both Sertraline and St. John's Wort in its title.

St John's wort (Hypericum perforatum) versus sertraline and placebo in major depressive disorder: continuation data from a 26-week RCT.

Pharmacopsychiatry · 2012 · PMID 22592504

Randomized Controlled TrialResearch Support, N.I.H., Extramural

“Comparisons between all treatments were however non-significant (p=0.61). This effect was mirrored on the other outcomes: the BDI, CGI-severity, CGI-improvement, and on intention-to-treat analyses.While the continuation data revealed an equivocal outcome between treatments at week 26, both SJW and sertraline were still therapeutically effective, with a pronounced "placebo-effect" impeding a significant result at week 26.”

Sarris et al. · From the abstract

Names both Sertraline and St. John's Wort in its title.

St John's wort or sertraline? Randomized controlled trial in primary care.

Canadian family physician Medecin de famille canadien · 2002 · PMID 12053635

Clinical TrialComparative StudyMulticenter StudyRandomized Controlled Trial

“The more benign side effects of SJW make it a good first choice for this patient population.”

van Gurp et al. · Authors' conclusion

Names both Sertraline and St. John's Wort in its title.

Effects of standardized extracts of St. John's wort on the single-unit activity of serotonergic dorsal Raphe neurons in awake cats: comparisons with fluoxetine and sertraline.

Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2001 · PMID 11750179

Comparative StudyAnimal study

“Overall, these findings indicate that the mode of action of St. John's wort is different from that of conventional antidepressant drugs, which elevate brain serotonin and evoke negative feedback control of serotonergic neurons.”

Fornal et al. · From the abstract

Names both Sertraline and St. John's Wort in its title.

Mania in a patient receiving testosterone replacement postorchidectomy taking St John's wort and sertraline.

Journal of psychopharmacology (Oxford, England) · 2000 · PMID 10757260

Case ReportsHuman subjects

“He subsequently developed a manic episode. We discuss postulated modes of action of St John's wort and the possible aetiological importance of testosterone replacement and abnormal gonadotrophin levels in this case.”

Barbenel et al. · From the abstract

Names both Sertraline and St. John's Wort in its title.

Antidepressants for smoking cessation.

The Cochrane database of systematic reviews · 2014 · PMID 24402784

Meta-AnalysisResearch Support, N.I.H., ExtramuralSystematic ReviewHuman subjects

“The antidepressants bupropion and nortriptyline aid long-term smoking cessation. Adverse events with either medication appear to rarely be serious or lead to stopping medication. Evidence suggests that the mode of action of bupropion and nortriptyline is independent of their antidepressant effect and that they are of similar efficacy to nicotine replacement.”

Hughes et al. · Authors' conclusion

Names Sertraline and St. John's Wort together in an interaction, co-administration, or pharmacokinetic context.

Interactions between herbal medicines and prescribed drugs: an updated systematic review.

Drugs · 2009 · PMID 19719333

Systematic ReviewHuman subjects

“Numerous interactions between herbal medicines and conventional drugs have been documented. While the significance of many interactions is uncertain, several interactions, particularly those with St John's wort, may have serious clinical consequences.”

Izzo et al. · From the abstract

Names Sertraline and St. John's Wort together in an interaction, co-administration, or pharmacokinetic context.

Limitations

What this evidence cannot tell you.

Search-based evidence indexes have real limits, and it is worth being explicit about them:

How to read this page

A literature summary, not guidance.

NutriStack

Track what you actually take.

NutriStack is a free iPhone app for organising a supplement routine: what you take, when, and what the published record says about it. Its exploratory interaction checker covers Sertraline, St. John's Wort, and several hundred other substances.

Log your routine, get reminders at the times you choose, and scan a label to add a product. The checker is a research and organisation tool, not a clinical decision aid.

NutriStack is an informational and organizational tool, not a medical service, and not a substitute for professional advice. Always consult a qualified healthcare professional before starting, stopping, or changing any supplement or medication.