Clinical studies of tadalafil at standard doses found no significant adverse effect on average testosterone levels. Tadalafil is not a testosterone booster, and it does not directly increase ***** desire. Some studies reported changes in sperm concentration, but the findings were inconsistent. TADALAFIL tablet, film coated Important: Vidalista Black 80 mg is marketed as a high-strength tadalafil product. The usual maximum as-needed dose for erectile dysfunction is 20 mg, so do not take 80 mg without medical supervision. Vidalista - +1 If you're concerned about low testosterone, a morning blood test can help assess it. Are you asking because you want to increase testosterone, improve erections, or improve sperm count and fertility? The best advice differs for each goal.