I'm am 36 years old married man. Initially 1 year of my marriage I was ok in sex. But now it's been 5 years. I have lost my libido. My penis is not erect like before it's not hard I ejaculate very fast. What to do I don't smoke or drink. I used to chew tobacco but now stopped from 2 months still nothing. Is there any way to increase my libido and stamina. Because I have tried many pills no use himalayas confido and ayurvedic pills hasmi pills all waste nothing worked so I want to know is there any way it can be treated permanently I just want little longer duration and hard erect penis for sex I can't do more than once sex. Last 3 years ago I used to do 2 times at least. But now not even once what is the issue how do I make my sexual life normal I am worried its spoiling my married life lack of sex. Please help me out with some good solution. What to take wil revital or zandu vigorous help.