Plainly speaking, Sildenafil and Viagra contain the same active ingredient. The main difference between Sildenafil and Viagra is the price. That means eating healthy foods, exercising, getting good sleep, limiting stress, and treating other health conditions that might cause ED, like high blood pressure, heart disease, diabetes, obesity, and low testosterone, Dr. The medication was developed by U. The other difference between Sildenafil and Viagra can be the appearance of the tablets themselves. Important note: The bioequivalence also means you need to steer clear of both Sildenafil and Viagra if you have been medically advised against taking either of them.Sildenafil (Viagra, Revatio) is a moderately priced drug used to treat erection problems in men. It is also used to treat pulmonary arterial hypertension, a serious heart and lung . Yes, penile pumps (also known as ED pumps) are over-the-counter devices that work to treat erectile dysfunction, similar to Viagra. Viagra (sildenafil) is usually . Certain over-the-counter (OTC) supplements may help with erectile dysfunction, such as: L-arginine in combination with pycnogenol Has been shown in studies to improve sexual .