Sildigra 250 mg is a medication used to treat erectile dysfunction (ED). Its active ingredient is sildenafil citrate, a phosphodiesterase type 5 (PDE5) inhibitor that helps increase blood flow to the penis during sexual stimulation. Sildigra 250 works by relaxing blood vessels in the penis, allowing for increased blood flow, which facilitates an erection. It should not be taken with nitrates or certain medications that can lower blood pressure due to the risk of severe hypotension.