A Vidalista 2.5 Tablet may be taken with or without food. It needs to be taken precisely as your doctor has prescribed. One hour is the recommended waiting period before engaging in sexual activity. While everyone's work takes a different amount of time, work usually takes 30 to 60 minutes. Men with erectile dysfunction, sometimes referred to as impotence, can be treated with the prescription medication Vidalista 2.5 Tablet. It functions by boosting blood flow to the penile region. This helps men achieve and maintain an erection. It is a member of the class of drugs known as phosphodiesterase type 5 (PDE 5) inhibitors.