DRUG MAINTENANCE PROGRAMS TREATMENT OF A DRUG DEPENDENCE BY PRESCRIPTION OF A SUBSTITUTE DRUG IN ORDER TO ELIMINATE OR REDUCE THE USE OF A SPECIFIC DRUG OR MINIMIZE ITS HARMFUL EFFECTS; IT CAN LAST TO 20 OR MORE YEARS.
· B > DRUG HARM REDUCTION POLICIES / PROGRAMS
· B > DRUG THERAPEUTIC USE
· R > METHADONE
· R > HEROIN
