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 SAMe + Venlafaxine pair, each linking to PubMed by PMID where available. Full sourcing methodology at https://nutristackapp.com/methodology/interactions.

Interaction databaseSupplement × PrescriptionReviewed May 2026

SAMe and Venlafaxine, a caution.

Q: Can I take SAMe and Venlafaxine together?

Possibly, but with caution. SAMe and Venlafaxine have a documented caution-tier interaction. SAMe has antidepressant and monoamine-modulating activity. Venlafaxine increases serotonergic signaling, especially at lower and moderate doses, and also increases norepinephrine at higher doses. Adding SAMe may increase the risk of serotonin toxicity or mood activation.

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. Venlafaxine increases serotonergic signaling, especially at lower and moderate doses, and also increases norepinephrine at higher doses. Adding SAMe may increase the risk of serotonin toxicity or mood activation.

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: SAMe and Venlafaxine
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. Venlafaxine increases serotonergic signaling, especially at lower and moderate doses, and also increases norepinephrine at higher doses. Adding SAMe may increase the risk of serotonin toxicity or mood activation.

Mechanism. Venlafaxine inhibits serotonin and norepinephrine reuptake. SAMe supports methylation reactions involved in monoamine metabolism and has antidepressant effects, so the combination can add serotonergic pressure and mood activation risk.

Recommendation. Do not add SAMe to venlafaxine without prescriber approval. Stop the supplement and seek urgent care for clonus, high fever, severe agitation, confusion, seizure, or rapidly escalating manic symptoms.

Sources (2)

Stack Score

How this pair moves the number.

Effect on the composite score

If both SAMe and Venlafaxine 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.

Check your full routine

One pair was the worked example. NutriStack runs every pair in your stack at once.

Drop in your supplements and prescriptions and the public database surfaces every interaction, synergy, timing rule, and contraindication, every one linked to its primary source.

Open the interaction checker →Browse the full research index