Vidalista 10 mg is commonly marketed as a tablet containing tadalafil, a phosphodiesterase type-5 (PDE5) inhibitor used to treat erectile dysfunction (ED) in adult men. Tadalafil works by improving blood flow to the penis during sexual stimulation, helping achieve and maintain an erection. For ED, 10 mg tadalafil is commonly used as an as-needed dose. It is generally taken before anticipated sexual activity and may remain effective for up to approximately 36 hours. This does not mean that an erection lasts continuously; sexual stimulation is still necessary for tadalafil to work.