Vidalista 20 mg is used to treat male sexual function problems (impotence or erectile dysfunction-ED). In combination with sexual stimulation, Tadalafil works by increasing blood flow to the help a man get and maintain an erection. If you stop taking the drug, you are likely to experience the same symptoms of ED. This drug helps you have a healthy sex life as you seek treatment for the actual cause of impotence. Safety should also be taken into consideration when determining how much of this drug should be taken and how often.