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Table 5 Effect on seminal parameters and serum testosterone

From: Evaluation of a multi-herb supplement for erectile dysfunction: a randomized double-blind, placebo-controlled study

Variable VigRX Plus Placebo
  Baseline 12 weeks Baseline 12 weeks
Sperm count (million/ml) 49.45 (27.85) 47.15 (25.31) 58.29 (30.02) 63.97 (20.83)
(N = 22) (N = 22) (N = 18) (N = 18)
Semen volume (ml) 1.75 (0.63) 2.11 (0.53) 1.97 (0.70) 2.22 (0.88)
(N = 22) (N = 22) (N = 18) (N = 18)
Serum testosterone (ng/Dl) 544.46 (207.64) 527.66 (155.47) 518.10 (197.51) 471.75 (160.38)
(N = 37) (N = 37) (N = 25) (N = 25)
  1. Data are expressed as Mean (SD).