They both belong to the same class of medicine and essentially work the same.
Levitra (vardenafil) is a selective inhibitor of cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5).
Tadalafil (Cialis) is also a Phosphodiesterase type 5 inhibitor
These enhances the effect of nitric oxide at the nerve ending and endothelial cells in the corpus cavernosum by inhibiting phosphodiesterase type 5 in the corpus cavernosum of the penis. This results in vasodilation, increased inflow of blood into the corporus cavernosum, and ensuing penile erection upon sexual stimulation.
Search for questions
Still looking for answers? Try searching for what you seek or ask your own question.
Posted 15 Oct 2009 • 1 answer
Posted 16 Dec 2010 • 1 answer
Posted 5 Aug 2013 • 1 answer
Posted 23 Jun 2014 • 1 answer
Posted 14 Jul 2016 • 0 answers