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Drug Alcohol Depend. 2009 Jun 1;102(1-3):63-70. doi: 10.1016/j.drugalcdep.2009.01.007. Epub 2009 Mar 10.

Subtypes of nonmedical prescription drug misuse.

Author information

  • 1University of Michigan Substance Abuse Research Center, 2025 Traverwood Dr., Suite C, Ann Arbor, MI 48105-2194, USA. plius@umich.edu

Abstract

This study used three characteristics (i.e., motive, route of administration, and co-ingestion with alcohol) of nonmedical prescription drug misuse across four separate classes (i.e., pain, sedative/anxiety, sleeping, and stimulant medications) to examine subtypes and drug related problems. A Web survey was self-administered by a randomly selected sample of 3639 undergraduate students attending a large midwestern 4-year U.S. university. Self-treatment subtypes were characterized by motives consistent with the prescription drug's pharmaceutical main indication, oral only routes of administration, and no co-ingestion with alcohol. Recreational subtypes were characterized by recreational motives, oral or non-oral routes, and co-ingestion. Mixed subtypes consisted of other combinations of motives, routes, and co-ingestion. Among those who reported nonmedical prescription drug misuse, approximately 13% were classified into the recreational subtype, while 39% were in the self-treatment subtype, and 48% were in the mixed subtype. There were significant differences in the subtypes in terms of gender, race and prescription drug class. Approximately 50% of those in subtypes other than self-treatment screened positive for drug abuse. The odds of substance use and abuse were generally lower among self-treatment subtypes than other subtypes. The findings indicate subtypes should be considered when examining nonmedical prescription drug misuse, especially for pain medication.

PMID:
19278795
[PubMed - indexed for MEDLINE]
PMCID:
PMC2975029
Free PMC Article
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