Malegra 25 mg is a medication used to treat erectile dysfunction (ED) in men. It contains the active ingredient Sildenafil, which is a phosphodiesterase type 5 (PDE5) inhibitor. Sildenafil works by increasing blood flow to the penis, allowing men to achieve and maintain an erection when they are sexually aroused. Malegra 25 mg is typically taken as needed, usually about 30 minutes to 1 hour before anticipated sexual activity. It should not be taken more than once a day.