OnsetOfAction

How Long Does Viagra Take to Work? Understanding the Timing and Effects

The Mechanism of Action: How Viagra Works in the Body Viagra (sildenafil citrate) is a medication commonly prescribed to treat erectile dysfunction (ED) in men. The active ingredient, sildenafil, works by increasing blood flow to the penis, helping to achieve and maintain an erection during sexual stimulation. Specifically, Viagra works by inhibiting an enzyme called phosphodiesterase type 5 (PDE5). This…