Sir my age is 40 and before my penis becomes very hard and I use to masturbate for several years. But now I am married my penis becomes hard while intercourse and it will decrease automatically it will become small while having intercourse. And in dreams im not getting proper erection. And my wife is not satisfied with me. And im not getting proper intention on sex like before I use to masturbate. At last I got divorced so please help me fr my new life. And my penis girth also became small. So suggest me any good medication which will cure very fast and let me leave my life happily again.