Sildigra 250 Mg containing 250 mg of active ingredient. Sildigra is a brand of medication primarily used to treat erectile dysfunction (ED) in men. It typically contains sildenafil citrate as its active ingredient. Sildenafil citrate is a phosphodiesterase type 5 (PDE5) inhibitor, which works by increasing blood flow to the penis during sexual stimulation, facilitating the attainment and maintenance of an erection.