Fildena 100 inhibits the enzyme PDE5, which is responsible for breaking down cyclic guanosine monophosphate (cGMP). By blocking PDE5, Fildena 100 allows cGMP levels to rise, promoting relaxation of smooth muscles in the penile arteries and increasing blood flow to the erectile tissue. This process ultimately leads to the attainment of a firm and sustained erection, provided sexual stimulation is present. Fildena 100 typically takes effect within 30 to 60 minutes after ingestion and can last for up to four hours.
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