As a phosphodiesterase type 5 inhibitor, Vidalista tadalafil works by increasing blood flow to the penis during sexual stimulation. Tadalafil, the active ingredient in Vidalista, is also found in the popular ED medication tadalafil. This results in an increase in cyclic guanosine monophosphate levels, which relaxes smooth muscles and increases blood flow. Store in a dry, cold place and keep out of children's reach. It is not recommended to utilize tablets past their expiration date. When taking a medication with food or another medication, interactions usually occur. If you take illicit, smoke, consume alcohol or caffeinated beverages, or engage in any of these activities, please let your doctor know as they may have an impact on the effectiveness of your medication.