WebCompare risks and benefits of common medications used for Erectile Dysfunction. Find the most popular drugs, view ratings and user reviews.How long does it take for Cialis to peak? Sorry something went wrong with your subscription Please, try again in a couple of minutes Retry. Potential side effects can include nausea, headache, vomiting and reactions at the injection site. This medicine works best when you take it on an empty stomach an hour before sex. Kidney disease that needs to be treated with dialysis.WebDec 7, · Given the success of drugs to treat erectile dysfunction, such as sildenafil (Viagra), tadalafil (Cialis) and vardenafil (Levitra, Staxyn), drug companies have sought a similar drug for women. Viagra has even been tried as a . WebViagra Alternatives Compared. Viagra (sildenafil) Cialis (tadalafil) Sildenafil. Prescription only. Viagra is used to treat erectile dysfunction (ED), but will not have any effect in the . WebJan 18, · What Is Viagra? Viagra (sildenafil) was the first erectile dysfunction pill the FDA approved, back in Like Cialis, it’s a PDE5 inhibitor that increases blood flow to the penis. The difference is that the effects of Viagra don’t last very long (only about four to six hours). Viagra is always taken before an anticipated sexual activity.When oral medications might not be safe Check with your health care team before you take any medicine for erectile dysfunction. If you tried Viagra and had nasty side effects, it may be worth speaking to your doctor about trying one of the other two medications. Viagra generally only stays in your system for four to six hours. It might work longer if you have mild to moderate erectile dysfunction. A newer form of the medicine that dissolves on the tongue might work faster than the pill that you swallow. For them, taking Viagra could cause their blood pressure to drop to dangerously low levels, according to the Mayo Clinic. Because they are the same class of medications, they have similar side effects and effectiveness.
