| Effect | None |
| Values | Mean and SD. ng/ml. Placebo: before 1.8 (0.8), 3 months 1.8 (0.8), 6 months 1.8 (0.8). Carnitine: before 2.4 (0.9), 3 months 2.2 (0.7), 6 months 2.3 (0.8). |
| Trial Design | Randomized trial |
| Trial Length | 6+ Months |
| Number of Subjects | 120 |
| Sex | Male |
| Age Range | 65+ |
In a randomized, double-blind, placebo-controlled trial, 120 elderly male participants with sexual dysfunction, depressed mood, and fatigue associated with aging took a placebo, 160 mg/day of testosterone undecanoate, or propionyl-L-carnitine 2 g/day plus acetyl-L-carnitine 2 g/day for 6 months.
Carnitine improved erectile function and general sexual function, as well as depression and fatigue. Prostate-specific antigen, prostate volume, free testosterone, total testosterone, luteinizing hormone weren't notably affected.
