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Saw Palmetto Side Effects & Safety

This content is for informational purposes only and does not constitute medical advice. Consult your healthcare provider before starting any supplement. Full disclaimer

Safety Profile

Overall safety rating: Generally Safe

Potential Side Effects

  • Mild GI discomfort (stomach upset, nausea) — reduced by taking with food
  • Headache (infrequent)
  • Dizziness (rare)
  • Very rarely reported: reduced libido or erectile changes, though incidence is far lower than with finasteride

Drug & Supplement Interactions

  • Finasteride/dutasteride — additive 5-alpha-reductase inhibition; consult urologist before combining
  • Anticoagulants and antiplatelet drugs — theoretical interaction due to COX inhibition; monitor if combining
  • Hormonal medications — may interact with hormone-sensitive conditions; discuss with physician
  • Oral contraceptives/HRT — theoretical anti-androgenic interaction; clinical significance unclear

Maximum Dose

Do not exceed: 960mg daily has been studied in some trials without significant adverse effects

References

  1. (). Serenoa repens for benign prostatic hyperplasia. Cochrane Database of Systematic Reviews. DOI
  2. (). Effect of increasing doses of saw palmetto extract on lower urinary tract symptoms: a randomized trial. JAMA. DOI
  3. (). Comparitive effectiveness of finasteride vs Serenoa repens in male androgenetic alopecia. International Journal of Immunopathology and Pharmacology. DOI