Prisons fight opioids with $1,000 injection: Does it work?

SHERIDAN, Ill. -- U.S. prisons are experimenting with a high-priced monthly injection that could help addicted inmates stay off opioids after they are released, but skeptics question its effectiveness and say the manufacturer has aggressively marketed an unproven drug to corrections officials.A single shot of Vivitrol, given in the buttocks, lasts for four weeks and eliminates the need for the daily doses common with alternatives such as methadone. But each shot costs as much as $1,000, and beca