Get the facts on five over-the-counter ED pills. Learn how options like DHEA and yohimbe can help treat erectile dysfunction. Learn about warnings and more.BPH occurs when the prostate and the surrounding tissues become enlarged. It lasts 4 to 5 hours, or longer if you have mild to moderate ED. Both Cialis and Viagra work quickly. Alternatively, Cialis may be prescribed as an as-needed treatment for ED, to be taken before sexual activity. Your healthcare provider will discuss which dose is right for you.Differences Oral medications are a simple and effective way to treat erectile dysfunction (ED). The most common erectile dysfunction pill is Viagra, and the next most common is . Sildenafil (Viagra). Tadalafil (Cialis). Vardenafil. These medicines are called PDE5 inhibitors. They enhance the effects of a chemical the body makes that relaxes muscles . Cialis and Viagra have both been shown to be safe and effective for erectile dysfunction. The main differences are cost and timing. For occasional use, most people start with Viagra which also tends to be cheaper. Cialis lasts longer and can also be taken daily at a .Talk with your healthcare provider about your sex life and desired use. Brand-name versions of the drug approved for PAH include Adcirca. Is 20mg of Cialis better than mg of Viagra? But, you should still see your doctor to discuss other health issues. The products discussed in this site may have different product labeling in different countries. They include dutasteride Avodart, Jalyn and finasteride Propecia, Proscar.