Supplement × Prescription·a caution·Emerging evidence
L-Theanine may have calming or sedating effects that can add to doxepin.
Every entry follows the same shape: what is happening, the mechanism, and the recommendation.
What is happening. L-Theanine may have calming or sedating effects that can add to doxepin.
Mechanism. Potential additive CNS depression and psychomotor slowing.
Recommendation. Use cautiously and avoid combining before driving, working at heights, or using other sedatives.
Effect on the composite score
If both Doxepin and L-Theanine 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 at /methodology/stack-score.
Every claim on this page is cited. PMIDs link straight to PubMed.
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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.
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