Cialis® is in a class of drugs called Phosphodiesterase Enzyme Inhibitors. It is used to treat erection problems in men. Cialis® is manufactured by Eli Lilly.
Viagra Professional is an extra-strength version of the first sildenafil citrate drug to treat erectile dysfunction.It is chewable and this Indian drug has all the advantages of the regular pill. Absorbed directly into the bloodstream, it acts faster, and guarantees prolonged effect. Another purported advantage of Viagra Professional not found in the original is the stimulation needed to achieve an erection. The makers of Viagra Professional attest that less stimulation will be needed prior to intercourse than before, as the nerves of the penis will have a greater sensitivity.
