Justin Bieber Urged to go to Rehab – Justin Bieber is using drugs with alarming regularity … and it’s making him so erratic his people have been urging him to go to rehab. Bieber has been using sizzurp regularly. It’s typically codeine and promethazine mixed with Sprite and a Jolly Rancher. Bieber and his crew refer to it as “lean.” It’s a very dangerous narcotic that can trigger seizures, and even worse. But that’s not the only drug Bieber is using. We’re told he’s been taking lots of prescription pills, including Xanax, in addition to lots of alcohol and weed. Sources insist he does NOT do cocaine and has never done it in his life. Reportedly a number of people are very worried and have urged him to get help — including going to rehab.