The most potent formulation for the highest level of ED combat is Fildena Double 200 mg. Sildenafil Citrate, an active and very effective drug that is a member of the PDE5 inhibitor group, is present in 200 mg of it. The medication acts rapidly, causing the blood vessels to enlarge, increasing erection rigidity and duration. It is advised to take it 30 to 60 minutes before engaging in sexual activity for optimal results. Particularly when taken without food in the stomach, it acts quickly. Eating foods high in fat or oil may reduce and prolong the effects of the medication.