This component is a PDE5 inhibitor, which prevents the PDE5 enzyme from functioning properly. This oral drug causes an erection, which is the typical response to sexual stimulation by widening the veins in the vaginal region. The sildenafil citrate dosage of 225 mg aids in creating and maintaining a firm vaginal region that is appropriate for sexual activity. It is possible that you can use Sildigra 225 to stimulate your sex.