When the manufacturers of OxyContin changed their formula in 2010 to lesson its potential for abuse, I don’t think they intended to drive addicts to use other drugs. Unfortunately, that’s what happened. As a result of OxyContin’s new formula being harder to snort or inject, addicts ultimately flocked to the streets. The unfortunate drug of choice: heroin—because it’s easier to obtain and cheaper than its pharmaceutical counterpart. Dr. Theodore Cicero, professor of neuropharmacology in psychiatry at Washington University, and the principal investigator for a three-year research study of OxyContin use noticed a significant drop in OxyContin use after its formula …