**Vidalista 20 mg** is an oral medication containing **tadalafil**, a phosphodiesterase-5 (PDE5) inhibitor used to help adult men manage **erectile dysfunction (ED)**. It works by relaxing blood vessels and improving blood flow to the penis during sexual stimulation, supporting a firm and lasting erection. Vidalista 20 mg typically starts working within **30–60 minutes** and its effects may last up to **36 hours**, allowing greater flexibility and spontaneity. This strength is commonly prescribed for moderate to severe ED and should be taken **only as directed by a healthcare professional**, not more than once in 24 hours.