Vivitrol uses monthly, extended-release injections of the opiate blocker naltrexone, which prevents heroin users from getting high. It's an alternative to daily trips to methadone clinics, isn't potentially addictive like other drug treatments and provides a buffer for recovering addicts.
"It's very difficult to ask an opiate addict to adhere to a daily regimen of taking a pill that will reduce their addiction," says Richard Pops, CEO of drugmaker Alkermes PLC. "The secret of Vivitrol, or its major contribution, is its once-a-month dosing format that actually provides a safety net fo...
Also read: MEP Steven Woolfe quits UKIP