In several important studies, oral Naltrexone has proven to be effective and
successful in reducing reincarceration.
One of the most significant studies was performed at Changi Prison
in Singapore during the early 90s. Over a three-year period from
1991 to 1993, heroin addicts in community-based programs were
treated with a "three-phase" program requiring a job, counseling,
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Prior to Naltrexone therapy, only 24% of heroin addicts were
drug-free. With the addition of Naltrexone to the program,
76.3% remained drug-free at one year.
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and electronic monitoring. After one year, only 24% of the addicts were drug free. In August of 1993, however, Naltrexone was
as a fourth modality and the success rate soared, with 76.3% remaining drug free at one year.
Another milestone study performed by University of Pennsylvania
physicians in 1997 on federal probationers and parolees also showed
excellent results. Only 8% of the subjects in the Naltrexone group
tested positive for heroin in the 6-month follow up, versus
30% in the control group. Even more significant, the
reincarceration rate for the Naltrexone group was nearly 50%
lower than the control group.
> see page 3
