Vidalista is a powerful drug used to treat erectile dysfunction in men. Tadalafil, the primary ingredient, is a trustworthy medication with a history of improving blood flow to the penile area. Headaches, nausea, stuffy noses, back discomfort, blurred vision, and flushing in the face, neck, or chest are some of the side effects of using Vidalista.  It is always important to follow your doctor's advice and the instructions on the label of any prescription drug. When taking a medication with food or another medication, drug interactions usually occur. If you take illicit drugs, smoke, consume alcohol or caffeinated beverages, or engage in any of these activities, please let your doctor know as they may have an impact on the effectiveness of your medication.