Cialis (tadalafil) is a phosphodiesterase type 5 (PDE5) inhibitor. PDE5 is an enzyme that breaks down cyclic guanosine monophosphate (cGMP),
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Cialis (tadalafil) is a phosphodiesterase type 5 (PDE5) inhibitor. PDE5 is an enzyme that breaks down cyclic guanosine monophosphate (cGMP),
Continue reading