Sildisoft tablets contain sildenafil citrate, which is the active ingredient also found in Viagra. Sildenafil citrate belongs to a class of medications called phosphodiesterase type 5 (PDE5) inhibitors. These tablets are primarily used to treat erectile dysfunction (ED) in men. When a man is sexually aroused, nitric oxide is released in the erectile tissue of the penis. Nitric oxide activates an enzyme called guanylate cyclase, which increases levels of cyclic guanosine monophosphate (cGMP). This leads to relaxation of the smooth muscles in the blood vessels of the penis, allowing them to widen and increase blood flow. https://www.genericday.com/sildisoft-tablets.html