Vidalista Professional is an enzyme inhibitor of phosphodiesterase-5. It works by blocking PDE-5. This protein, which is found in your body, breaks down the substances that normally cause an erection. Avoid grapefruit juice and take your tablets whole, ideally with water or juice. After taking this erectile dysfunction medication, the ability to have sex may improve for up to 36 hours. This medicine comes with a patient information leaflet. Read these instructions carefully, then follow them. The medicine should be stored at room temperature in a well-sealed container away from heat sources, moisture, and direct sunlight.