Abuse-deterrent formulation spurring heroin use Many people who abused the painkiller OxyContin by inhaling or injecting it switched to heroin after the prescription's formula changed, U.S. researchers say. OxyContin was designed to slowly release the opioid drug oxycodone. After people started abusing it by crushing the pills and inhaling the powder or dissolving the pills in water and injecting it to get a rush, the drug maker introduced a new formula in the U.S. in 2010 to make inhaling and injecting more difficult............ TO READ THE FULL ARTICLE, CLICK ANYWHERE ON TEXT ...