From the databaseWhat the row says.
Every entry follows the same shape: what is happening, the mechanism, and the recommendation.
Scope
Supplement × Prescription
Last verified
June 4, 2026
SynergyEmerging evidence
What is happening. Saw palmetto is often used for urinary symptoms and may overlap with silodosin goals, but evidence is less consistent than prescription alpha blockers.
Mechanism. Potential overlapping lower urinary tract symptom effects through different and incompletely defined mechanisms.
Recommendation. Do not substitute saw palmetto for prescribed BPH evaluation; monitor dizziness and symptom response if combined.
Stack Score
How it moves the number.
Effect on the composite score
If both Saw Palmetto and Silodosin are in the same stack, this pair applies +2 to your Stack Score (per scored synergy row).
The full algorithm, the clamping rules, and four worked stacks are at /methodology/stack-score.
SourcesSources, by evidence tier.
Every claim on this page is cited. PMIDs link straight to PubMed.
Reference material
1- 1American Urological Association. Management of LUTS Attributed to BPH. 2023.Needs sourceNo link