SF: Writing—review and editing. It is possible that gaps in evidence or differing opinions on whether evidence from different healthcare systems would be replicable in Germany were factors in the range of scores for the benefits. Counterfeit medicines can be very dangerous. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher. If you are thinking about using tadalafil please discuss it with your doctor. Overall attribute scores ranged from 2.What is this medication? TADALAFIL (tah DA la fil) treats erectile dysfunction (ED). It works by increasing blood flow to the penis, which helps to maintain an erection. It may also be . Cialis Now Available as Generic Tadalafil: Here’s What You Need to Know – GoodRx. We have good news for you: generic Cialis, used to treat erectile dysfunction . Tadalafil (Cialis) is a phosphodiesterase-5 enzyme (PDE-5) inhibitor. It works by blocking PDE This is a protein in your body that breaks down the molecules that .