Malegra 25 mg is a medication used to treat erectile dysfunction (ED) in men. It contains sildenafil citrate as its active ingredient. Sildenafil is a phosphodiesterase type 5 (PDE-5) inhibitor, which means it works by increasing blood flow to the penis, helping men achieve and maintain an erection during sexual stimulation. Malegra 25 mg contains 25 milligrams of sildenafil citrate. The dosage may be adjusted based on individual response and tolerability, as determined by a healthcare provider.