Chad Rank has been taking buprenorphine for years. But he's still coming to terms with what it means for his recovery from more than a decade of addiction to opioids. "A few months ago I talked to my doctor, and I was like, 'Maybe I want to come off of it,'" Rank said. "It's a real internal struggle: Do I want to keep taking this?" Buprenorphine is a prescription drug used to help people quit heroin, painkillers, or other opioids. But it carries its own stigma , especially in 12-step programs