Double-blind placebo-controlled trial of methylphenidate in the treatment of adult ADHD patients with comorbid cocaine dependence

Exp Clin Psychopharmacol. 2002 Aug;10(3):286-94. doi: 10.1037//1064-1297.10.3.286.


In this 12-week double-blind placebo-controlled trial of methylphenidate (MTP) versus placebo in 48 cocaine-dependent attention-deficit/hyperactivity disorder (ADHD) adults, the authors sought to determine whether MTP would be safe, control ADHD symptoms, and affect cocaine use. Efficacy indexes revealed significantly greater ADHD symptom relief in the MTP group. There were no group differences in self-reported cocaine use, urinalysis results, or cocaine craving. Because of the relatively small sample size, the results are preliminary. However, we found that MTP improved subjective reports of ADHD symptoms and did not worsen cocaine use while participants were in treatment.

Publication types

  • Clinical Trial
  • Comparative Study
  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Adolescent
  • Adult
  • Attention Deficit Disorder with Hyperactivity / drug therapy*
  • Attention Deficit Disorder with Hyperactivity / psychology
  • Central Nervous System Stimulants / adverse effects
  • Central Nervous System Stimulants / therapeutic use*
  • Cocaine-Related Disorders / drug therapy*
  • Cocaine-Related Disorders / psychology
  • Comorbidity
  • Double-Blind Method
  • Female
  • Humans
  • Male
  • Methylphenidate / adverse effects
  • Methylphenidate / therapeutic use*
  • Middle Aged
  • Pemoline / therapeutic use
  • Psychiatric Status Rating Scales


  • Central Nervous System Stimulants
  • Methylphenidate
  • Pemoline