Sildigra 100 is a medication used to treat erectile dysfunction (ED) in men. It contains the active ingredient sildenafil citrate, which is a phosphodiesterase type 5 (PDE5) inhibitor. Sildenafil works by increasing blood flow to the penis when a man is sexually aroused, allowing him to achieve and maintain an erection. Here are some key points to know about Sildigra 100: