Research Article

Effects of a Proprietary Freeze-Dried Water Extract of Eurycoma longifolia (Physta) and Polygonum minus on Sexual Performance and Well-Being in Men: A Randomized, Double-Blind, Placebo-Controlled Study

Table 1

Inclusion criteria, exclusion criteria, and study controls.

Inclusion criteria
 Male
 Age between 40 and 65 years
 In a stable heterosexual relationship for at least 6 months
 Testosterone levels ≤450 ng/dL
 Index of erectile dysfunction scores of 17–25
Exclusion criteria
 History of prostate cancer
 Elevated prostate-specific antigen (PSA)
 Benign prostate hypertrophy (BPH) scores ≥40
 Penile anatomical abnormalities
 Premature ejaculation
 Cardiovascular disease
 Resting hypotension (resting systolic blood pressure 90 mmHg)
 Resting hypertension (resting systolic blood pressure >170 mmHg or diastolic pressure >110 mmHg)
 Primary hypoactive sexual desire
 Abnormal prostate exam during the screening visit
Study controls
 Both partners had to agree to attempt intercourse at least once per week on average during the study