Clay, Soap & Other

Saw Palmetto

Serenoa repens

A Strong clinical evidence

Saw palmetto fruit extract may help urinary symptoms of benign prostate enlargement; raised INR has been reported with warfarin.

Men’s Health
Saw Palmetto – Clay, Soap & Other

Image: Herbadex Botanik Stüdyosu · Özel Üretim

PregnancyUnknown
BreastfeedingUnknown
Children⚠ Avoid
Drug interactionsInteraction reported
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On this page

At a glance

The EMA classes standardised saw palmetto (Serenoa repens) fruit extract as "well-established use" for symptoms of benign prostatic hyperplasia (BPH). Use it with ready-made products after a doctor has ruled out serious disease. Long-term use is possible.

Parts used: fruits
Key constituents: Fatty Acids & Phytosterols

Updated: October 15, 2026

✓ This herb record is backed by official European Medicines Agency (EMA HMPC) herbal monographs.

What is it used for?

  • A Strong clinical evidence

    Strong clinical evidence: Supported by strong human clinical trials and well-established medicinal use monographs.

    How do we rate evidence levels? →

    Standardised extract may help urinary symptoms of benign prostatic hyperplasia, after a doctor's assessment. [1]

How is it used?

Food

Ready-made product: 320 mg extract once daily or 160 mg twice daily.

Amount: 1–2 times daily

Duration limit: Long-term use is possible

[1]

Safety & interactions

Minimum age: 18 years

  • See a doctor if urinary symptoms worsen or you get fever, cramps, blood in urine, painful urination or urinary retention.
  • The cause of prostate symptoms should first be assessed by a doctor.
  • There is no relevant use for women or under 18.
[1]

Drug interactions

Drug interactions
Medicine / substanceEffectSeverity
WarfarinRaised INR has been reported in a few cases; monitor INR closely. [1]Moderate

Side effects

  • Abdominal pain, nausea
  • Headache
  • Raised liver enzymes, skin rash (uncommon)
  • Reversible breast enlargement (uncommon)

⚕ When to see a doctor

  • If high fever, shortness of breath or purulent/bloody phlegm develops
  • If symptoms do not improve within 1–2 weeks or worsen
  • If severe abdominal pain, jaundice, rash or allergic reaction occurs

Did you know?

Saw palmetto's prostate use is accepted as "well-established" by the EMA only for a specific hexane extract. [1]

Frequently asked questions

Does saw palmetto help the prostate?

Based on clinical data, the EMA accepts that saw palmetto extract may help urinary symptoms of benign prostate enlargement.

Can I take saw palmetto with warfarin?

Raised INR has been reported in a few cases, so people on warfarin should ask their doctor and have INR checked.

How long can it be used?

Long-term use is possible; see a doctor if symptoms persist.

When should I see a doctor?

With fever, blood in urine, painful urination or if you cannot pass urine.

Sources

  1. European Union herbal monograph on Serenoa repens (W. Bartram) Small, fructusEMA HMPC · 2015

Cite This Page

Saw Palmetto (Serenoa repens). Herbadex — Doğal Şifa Rehberi (2026). https://herbadex.com/en/herb/saw-palmetto/

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