Malegra 100 Tablet is a well-known medication used to treat impotence in males, also known as erectile dysfunction. Sildenafil Citrate, a potent remedy for impotence, is present in it. The active ingredient in 100 mg of Malegra is sildenafil citrate. Because it is a PDE-5 inhibitor, it helps to relax the muscles in penile region. As a result of this relaxation Blood vessels enlarge, increasing blood flow. As a result, erectile dysfunction is treated by stimulating an erection.