Penegra is a medication used to treat erectile dysfunction and impotence in men. Sildenafil, an ingredient in this medication, helps men achieve a strong erection during sexual activity so they can enjoy longer periods of time spent with their partner. Views of the Penegra Review are available from our shop. Avoid taking this medication with cold or fatty foods as they will lessen its effectiveness. Take this medication half an hour before sexual activity. This medication takes five hours to take effect. Consume this medication with water; do not crush or chew the tablet. This medication can be taken either before or after a meal.