fildena 150 treats erectile dysfunction in men This drug uses sildenafil citrate as the main active ingredient. Sildenafil Citrate is consumed only in 150mg so that this medicine is not more harmful to the body but special care should be taken that this medicine is not consumed 1 or more times a day. Each man varies the ability of this medicine to work, some men can see the effect of this medicine in just 30 minutes, while some men take 1 hour for this medicine to not be affected.