Cenforce Professional    is a sublingual sildenafil product, and it is intended to be absorbed under the tongue. Product information suggests effects may begin within 15–30 minutes, although the more conservative expectation for sildenafil is about 30–60 minutes, and individual response varies. I Imimg +1 A few important points: Sexual stimulation is still required; it won't cause an automatic erection. Cenforce Professional   Don't take another dose simply because you don't feel an effect within an hour. Sildenafil's recommended maximum for ED is 100 mg once in 24 hours. D DailyMed Avoid it with nitrates/GTN or “poppers.” If you're using another sildenafil product such as Vigora, Silagra, Malegra, Fildena, or Eriacta, don't combine them with Cenforce Professional. If you're asking because you want it to work faster than regular sildenafil 50/100 mg, I can explain how the Professional version differs from the regular tablets.