The Strokes' Albert Hammond Jr. used to mix ''heroin, cocaine and heroin''.

The band's lead guitarist has opened up about the extent of his drug use, saying it started around the time the band released their second album 'Room on Fire'.

He told NME magazine: ''I'm just now being able to understand or speak about that time, and it's been almost four years.

''It was, like, oxycontin and cocaine at 24, 25, 26. And then I became [addicted to] heroin around then. So from 25, 27 till 29.''

When asked how bad it got, he replied: ''I mean, do you want me to get specific? I don't mind. I used to shoot cocaine, heroin, and ketamine. All together. Morning, night, 20 times a day. You know, I was a mess. I don't even recognise myself.''

Albert, 33, is now clean and says he has a new lease of life since he managed to quit drugs.

He added: ''I think drugs were a great way to get out of your head. You enjoy that for a while, it helps you to go to new places. But then it stops you from growing and puts you in a place where you're just not as good as you could be - for me. I'm not judging anybody else. I did it hard and for a long time, so I'm in no place to judge, nor would I. Something clicked one day and I got out of it.''

Albert is releasing a new EP of his solo material, 'AJH' later this month.