What kind of interaction is it?

Caution: an interaction that may reduce efficacy or raise side-effect risk and warrants monitoring.

Is this interaction backed by published research?

Yes. NutriStack lists 2 citation rows for the Duloxetine + SAMe pair, each linking to PubMed by PMID where available. Full sourcing methodology at https://nutristackapp.com/methodology/interactions.

Interaction databaseSupplement × PrescriptionReviewed May 2026

Duloxetine and SAMe, a caution.

Q: Can I take Duloxetine and SAMe together?

Possibly, but with caution. Duloxetine and SAMe have a documented caution-tier interaction. SAMe has antidepressant and monoamine-modulating activity. Duloxetine increases serotonin and norepinephrine signaling, so adding SAMe may increase the risk of serotonin toxicity or mood activation. Watch for agitation, sweating, tremor, diarrhea, clonus, fever, insomnia, or manic symptoms.

Q: How does this affect a NutriStack Stack Score?

-5 to your Stack Score per scored caution row.

SAMe has antidepressant and monoamine-modulating activity. Duloxetine increases serotonin and norepinephrine signaling, so adding SAMe may increase the risk of serotonin toxicity or mood activation. Watch for agitation, sweating, tremor, diarrhea, clonus, fever, insomnia, or manic symptoms.

2 primary source citations. Emerging evidence. Last verified May 30, 2026.

Open the interaction checker →Read the methodology

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.

Sourcing standards·Evidence tiers

From the interaction database

What the row says.

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

At a glance

Substances: Duloxetine and SAMe
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. SAMe has antidepressant and monoamine-modulating activity. Duloxetine increases serotonin and norepinephrine signaling, so adding SAMe may increase the risk of serotonin toxicity or mood activation. Watch for agitation, sweating, tremor, diarrhea, clonus, fever, insomnia, or manic symptoms.

Mechanism. Duloxetine inhibits serotonin and norepinephrine reuptake. SAMe participates in methylation pathways relevant to monoamine metabolism and has clinical antidepressant activity, creating additive serotonergic and mood-activating potential.

Recommendation. Avoid starting SAMe with duloxetine unless the prescriber managing duloxetine approves and monitors the combination. Seek urgent care for clonus, high fever, severe agitation, confusion, or seizure.

Sources (2)

Stack Score

How this pair moves the number.

Effect on the composite score

If both Duloxetine and SAMe 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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