The Evaluation of Banana Flower Stamens Extract on Prevention of Benign Prostatic Hyperplasia in Adults

Inclusion Criteria:

1. Male aged 40-80 years old

2. 7 ≤ IPSS score <19

3. The subject did not take α-blocker or anticholinergic agents in the last 8 weeks.The subject did not take 5α-reductase inhibitor or androgen suppression agents inthe last 16 weeks (depending on medical history).

4. The subject isn't diagnosed with cancer

5. The subject is able to read and finish the information on the questionnaire.

6. The subject must read and sign the informed consent form after the study has beenfully explained.

Exclusion criteria:

1. The subject has a history of epilepsy or convulsions, liver and kidney disease,cancer, endocrine disease, mental illness, alcohol or drug abuse, and other majororganic diseases (depending on medical history).

2. The lower urinary tract urination symptoms of the subject are not related toprostatic hypertrophy (depending on medical history).

3. Residual urine volume > 250 mL (depending on medical history)

4. Subjects have had pelvic radiation therapy or pelvic surgery (including prostate orbladder surgery, but those who only have had a prostate slice can participate in thetrial).

5. Subjects have taken sexual hormone preparations including LHRH agonists,anti-androgens, feminine, or Penta-reductase inhibitors (Proscar and Avodart) 16weeks prior to the trial.

6. Subjects have participated in other clinical trials 12 weeks prior to the trial.