Tadalista contains Tadalafil, which is primarily used to treat erectile dysfunction by improving blood flow. Does Tadalista affect testosterone levels? No direct impact: Tadalafil (and thus Tadalista) does not directly increase or decrease testosterone levels. Its main action is on blood vessels, not hormone production. Indirect effects: Some studies suggest that by improving erectile function and Tadalista activity, it may indirectly improve mood and sexual confidence, which could positively affect your body's overall hormonal balance, including testosterone. Testosterone and ED: Low testosterone can cause ED, but Tadalafil does not treat low testosterone itself. If low testosterone is the issue, hormone therapy might be needed. Bottom line: If you’re concerned about your testosterone levels, it’s best to get tested by a doctor. Tadalista helps with symptoms of ED but does not replace hormone treatments.