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

Interaction databaseSupplement × PrescriptionReviewed May 2026

Alcohol and Quetiapine, a caution.

Q: Can I take Alcohol and Quetiapine together?

Possibly, but with caution. Alcohol and Quetiapine have a documented caution-tier interaction. Alcohol can markedly increase quetiapine-related sleepiness, dizziness, slowed reactions, and poor coordination. Quetiapine's antihistamine and alpha-1 blocking effects already make sedation and orthostatic hypotension common, and alcohol can push this into falls, blackouts, or unsafe driving. Risk is highest at night, after dose increases, or with other sedatives.

Q: How does this affect a NutriStack Stack Score?

-5 to your Stack Score per scored caution row.

Alcohol can markedly increase quetiapine-related sleepiness, dizziness, slowed reactions, and poor coordination. Quetiapine's antihistamine and alpha-1 blocking effects already make sedation and orthostatic hypotension common, and alcohol can push this into falls, blackouts, or unsafe driving. Risk is highest at night, after dose increases, or with other sedatives.

2 primary source citations. Strong 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: Alcohol and Quetiapine
Pair type: Caution
Evidence (highest tier): Strong
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 · Strong evidence

Caution

What is happening. Alcohol can markedly increase quetiapine-related sleepiness, dizziness, slowed reactions, and poor coordination. Quetiapine's antihistamine and alpha-1 blocking effects already make sedation and orthostatic hypotension common, and alcohol can push this into falls, blackouts, or unsafe driving. Risk is highest at night, after dose increases, or with other sedatives.

Mechanism. Quetiapine causes CNS depression through strong H1 histamine antagonism and can lower blood pressure through alpha-1 adrenergic blockade. Alcohol adds CNS depression and psychomotor impairment, producing a pharmacodynamic interaction that spacing doses cannot reliably prevent.

Recommendation. Avoid alcohol while taking quetiapine. If alcohol was used, do not drive, take extra sleep aids, or take more quetiapine than prescribed. Get urgent help for extreme drowsiness, slow breathing, fainting, or inability to wake.

Sources (2)

Stack Score

How this pair moves the number.

Effect on the composite score

If both Alcohol and Quetiapine 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