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Opioid addiction treatments are equally effective, study finds

Vivitrol packaging. Photo: Carla K. Johnson / AP

The first study in the U.S. to directly compare two medications to treat opioid addiction — one injected monthly, one given daily as a film placed under the tongue — found the treatments are equally effective, according to research published in the Lancet on Tuesday.

Yes but: Naltrexone (or Vivitrol) injections can't begin until someone has detoxed, typically after a few days. In the study, 28 percent of the participants who were to receive naltrexone didn't detox and couldn't begin the treatment.