Supplement Forms/Alternate Names:

  • 6-grass pollen
  • 5-grass pollen
  • Rye grass pollen extract

Introduction

Grass pollen extract refers to compounds found in the pollen made by grass. It can be taken as pill or liquid extract. Grass pollen extract has been used to ease allergy symptoms and to improve prostate health.

Dosages

100 milligrams 1 to 2 times daily

What Research Shows

May Be Effective

Not Enough Data to Assess

Editorial process and description of evidence categories can be found at EBSCO NAT Editorial Process.

Editorial process and description of evidence categories can be found at EBSCO NAT Editorial Process.

Safety Notes

It is likely safe to take grass pollen extract in small doses for a short time, but rash and throat irritation may happen. Not enough studies have been done to say whether it is safe to use for a long period. It is also not known whether it is safe to take by women who are pregnant or breastfeeding.

Interactions

Talk to your doctor about any supplements or therapy you would like to use. Some can interfere with treatment or make conditions worse.

References

REFA Benign Prostatic Hyperplasia

REFA1 McNicholas T, Kirby R. Benign prostatic hyperplasia and male lower urinary tract symptoms (LUTS). BMJ Clin Evid. 2011 Aug 26;2011. pii: 1801.

REFB Chronic Prostatitis/Chronic Pelvic Pain Syndrome

REFB1 Wagenlehner FM, Schneider H, et al. A pollen extract (Cernilton) in patients with inflammatory chronic prostatitis-chronic pelvic pain syndrome: a multicenter, randomised, prospective, double-blind, placebo-controlled phase 3 study. Eur Urol. 2009;56(3):544-551.

REFB2 Iwamura H, Koie T, et al. Eviprostat has an identical effect compared to pollen extract (Cernilton) in patients with chronic prostatitis/chronic pelvic pain syndrome: a randomized, prospective study. BMC Urol. 2015 Dec 7;15:120.

Revision Information

  • Reviewer: EBSCO NAT Review Board Eric Hurwitz, DC
  • Review Date: 02/2020
  • Update Date: 05/27/2020