Vidalista 5 mg is a medication used to treat erectile dysfunction (ED) in men. It contains the active ingredient tadalafil, which is a phosphodiesterase type 5 (PDE5) inhibitor. The 5 mg strength indicates the amount of tadalafil in each tablet. Tadalafil works by increasing blood flow to the penis during sexual stimulation. It helps men with ED achieve and maintain an erection. The onset of action for Vidalista 5 mg is typically within 30 minutes to 1 hour after taking the medication. Like other PDE5 inhibitors, sexual stimulation is necessary for the medication to be effective.