Silagra 100 MG contains an active component called Sildenafil Citrate. This drug works by inhibiting Phosphodiesterase type 5 which helps in calming the muscles current in the penis. Smoothing of the muscles increases the product of the hormone cyclic guano sine monophosphate – camps which works by relaxing the muscles and helps in adding the inflow of blood. This helps a man in getting a proper construction that lasts for hours.