Interaction databaseSupplement × PrescriptionReviewed May 2026

Fluoxetine and Rhodiola Rosea, a caution.

Fluoxetine is serotonergic. Rhodiola has preclinical monoamine and MAO-related findings, but direct human evidence for serotonin syndrome with Fluoxetine is limited. Combined use should be treated as a theoretical serotonergic-interaction risk, not as a proven prescription-MAOI-like contraindication. Fluoxetine and norfluoxetine persist for weeks, so prescriber guidance is especially important before adding or stopping serotonergic supplements.

One pair, every claim cited. The two substances, the type, the mechanism, the recommendation, and the primary literature.
Same shape as the other 1,729 pairs in the public database.

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Every entry follows the same shape: what is happening, the mechanism, the recommendation, and the primary literature.

At a glance

Substances
Fluoxetine and Rhodiola Rosea
Pair type
Caution
Evidence (highest tier)
Emerging
Source citations
2 sources
Stack Score effect
−5 to your Stack Score (per scored caution row).
Scope
Supplement × Prescription
Last verified
May 30, 2026

Caution · Emerging evidence

Caution

What is happening. Fluoxetine is serotonergic. Rhodiola has preclinical monoamine and MAO-related findings, but direct human evidence for serotonin syndrome with Fluoxetine is limited. Combined use should be treated as a theoretical serotonergic-interaction risk, not as a proven prescription-MAOI-like contraindication. Fluoxetine and norfluoxetine persist for weeks, so prescriber guidance is especially important before adding or stopping serotonergic supplements.

Mechanism. Fluoxetine inhibits serotonin reuptake. Rhodiola constituents have shown monoamine-modulating and MAO-inhibitory activity in vitro, but clinical relevance at typical supplement doses is uncertain.

Recommendation. Do not use Rhodiola to self-augment Fluoxetine. Discuss Rhodiola with the prescriber or pharmacist first, especially if other serotonergic agents are present, and seek care for serotonin-toxicity symptoms if both are used.

Sources (2)
  1. van Diermen D, Marston A, Bravo J, Reist M, Carrupt PA, Hostettmann K. Monoamine oxidase inhibition by Rhodiola rosea L. roots. J Ethnopharmacol. 2009;122(2):397-401. PMID 19168123
  2. Woroń J, Siwek M. Unwanted effects of psychotropic drug interactions with medicinal products and diet supplements containing plant extracts. Psychiatr Pol. 2018;52(6):983-996. PMID 30659561

Stack Score

How this pair moves the number.

Effect on the composite score

If both Fluoxetine and Rhodiola Rosea are in the same stack, this pair applies −5 to your Stack Score (per scored caution row).

The full algorithm, the clamping rules, and four worked stacks are documented at /methodology/stack-score.

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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.