Vidalista 20 is a prescription drug that is used to treat erectile dysfunction in men. It works by increasing blood flow to the penile area. It is acceptable to take it with or without food. It needs to be taken just as your doctor has advised. One hour is the suggested waiting period before engaging in sexual activity. Although everyone's workday varies, it typically lasts between 30 and 60 minutes. You shouldn't drive if this drug makes you feel dizzy. Avoid drinking while taking this medication as it may increase the chance of side effects. Do not use this medication if you also use any other nitrate-containing medications.