Maxgun 100 mg is a great medicine which is manufactured for the treatment or cure of Ed or impotence in men.Ed refers to erectile dysfunction which occurs in men due to physical or psychological issues which can last for your whole lifespan so if we can treat this or cure this issue then why not?.The main active salt that is used in this medicine is known as sildenafil citrate (100 mg) which increases the blood flow to the genital organ of the male and helps them to attain a firm erection enough for the intercourse.