Characteristic Details Active Ingredient Sildenafil Citrate Available Dosages 100 mg, 50 mg Form Oral Tablet Onset of Action 30-60 Minutes Duration of Effect Up to 4 Hours Discover More on Cenforce Professional Chemical Structure The active compound in Cenforce Professional is sildenafil citrate. This chemical falls within the class of phosphodiesterase type 5 (PDE5) inhibitors. […]