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Published Online: 1 July 2014

Use of Extended-Release Methylphenidate (Concerta) in Treatment of Cocaine Dependence in a Patient Presenting With Attention Deficit Hyperactivity Disorder

Publication: The Journal of Neuropsychiatry and Clinical Neurosciences
To the Editor: Methylphenidate (MPH) is a central nervous system stimulant with limited peripheral actions1 used to treat attention deficit hyperactivity disorder (ADHD) in children. At the central level, MPH, like cocaine, blocks the dopamine transporter (DAT), particularly in the striate body and the nucleus accumbens, both regions involved in the process of positive reinforcement and reward (which would be dysfunctional in ADHD).2 MPH is generally well tolerated; most of its adverse effects are mild and/or temporary.3 As defined in the DSM-IV-TR, ADHD is a persistent and highly disabling mental disorder that is characterized by patterns of inattention, hyperactivity, and marked impulsivity, often complicated by co-occurring substance use disorders.4 It is estimated that 15%‒25% of cocaine abusers seeking treatment have ADHD.5,6 A recent review of the literature suggests that research on treatments such as MPH or amphetamine analogs of cocaine could help identify effective therapeutic molecules.7 MPH seems particularly promising, and a recent study showed its specific properties related to the mixed profile reuptake inhibitor of low-dose dopamine and deliverer of high-dose dopamine.8

Case Report

We report the case of a 40-year-old married Caucasian man, who consulted our addictology department for cocaine addiction. During the first consultation, the patient met the DSM-IV-TR criteria for cocaine dependence. Cocaine consumption began at the age of 30, and its use continued in the last 2 years (approximately 5 g of cocaine four times a week). He also met the DSM-IV-TR criteria for gambling (he went in the casino twice a week since 2 years and had a debt of $3,000 [U.S.]) and told us about sex addiction (with frequent compulsive sex outside marriage). Cocaine abuse allowed him to be calmer, more focused, and helped him to get involved in his professional work. It is important to note that the effect he was looking for was not a psychostimulant effect.
He wanted to stop the cocaine use, which was increasing and becoming problematic in his daily life. He had no medical history and did not take any other drug or substance. Biological and somatic assessments (including electrocardiographic exam) showed no abnormality. A urine screen for cocaine was initially positive; we then measured responsiveness to MPH for abstinence from cocaine by this test, clinic examination, and Cocaine Craving Questionnaire-Brief (CCQ-Brief).9 The patient was evaluated by the French version of Wender Utah Rating Scale-25 (F-WURS-25)10 and by the Adult Self-Report Scale (ASRS 1.1) symptoms checklist.11 He scored 10 points above the cut-off of the scale for the F-WURS-25 and scored 6/6 for the ASRS 1.1, confirming the presence of impairing symptoms of ADHD both in childhood and the adult age.
The patient was started on extended-release MPH at a dose of 18 mg/day (Concerta 18 mg). The drug was taken in a single dose at 8 a.m. every morning. The dosage was increased to 36 mg/day (Concerta 36 mg) after 20 days and to 54 mg/day (Concerta 54 mg) after 30 days. Doses titrations of MPH were well tolerated. Serum concentrations of MPH were measured at 15 days, 1 month, and 2 months and corresponded to the expected values considering the administered doses.
The first aim of our treatment was to obtain significant improvement of attention symptoms, impulsivity, and cocaine dependence. The secondary aim was to reduce its other addictions (gambling and compulsive sex).
Attention symptoms and impulsivity improved after 2 weeks, and the patient had no more craving for cocaine after 1 month. Compulsive sex outside marriage and gambling progressively disappeared during the first month of treatment.
A 1-year follow-up showed that he had completely stopped cocaine consumption, gambling, and compulsive sex, and presently shows better functional status. He has not consumed cocaine, alcohol, or other drugs since that time and has not developed MPH side effects. His attention deficit and impulsivity instability have significantly decreased.
We think that extended-release MPH (Concerta) has helped to treat our patient’s addictive and psychiatric symptoms of attention and behavioral dyscontrol marked by impulsivity, organizational difficulties, and craving. The decision to use an extended-release form was motivated by the slightest risk of diversion of this formulation and the necessity to have a prolonged effect. Nevertheless, further investigations are needed, but we think that we may expect other promising results with extended-release MPH, especially on ADHD patients with cocaine dependence.

References

1.
Kollins SH: Comparing the abuse potential of methylphenidate versus other stimulants: a review of available evidence and relevance to the ADHD patient. J Clin Psychiatry 2003; 64:(Suppl 11)14–18
2.
Volkow ND, Wang G-J, Kollins SH, et al.: Evaluating Dopamine Reward Pathway in ADHD: Clinical Implications. JAMA 2009; 302:1084–1091
3.
Graham J, Banaschewski T, Buitelaar J, et al.: European guidelines on managing adverse effects of medication for ADHD. Eur Child Adolesc Psychiatry 2011; 20:17–37
4.
Wilens TE: Impact of ADHD and its treatment on substance abuse in adults. J Clin Psychiatry 2004; 65(Suppl 3):38–45
5.
Perez de los Cobos J, Siñol N, Pureta C, et al.: Features and prevalence of patients with probable adult attention deficit hyperactivity disorder who requested treatment for cocaine use disorders. Psychol Res 2011; 185:205–210
6.
Delavenne H, Ballon N, Charles-Nicolas A, et al.: Attention deficit hyperactivity disorder is associated with a more severe pattern of cocaine consumption in cocaine users from French West Indies. J Addict Med 2011; 5:284–288
7.
Rush CR, Stoops WW: Agonist replacement therapy for cocaine dependence: a translational review. Future Med Chem 2012; 4:245–265
8.
Ferris MJ, Calipari ES, Mateo Y, et al.: Cocaine self-administration produces pharmacodynamic tolerance: differential effects on the potency of dopamine transporter blockers, releasers, and methylphenidate. Neuropsychopharmacology 2012; 37:1708–1716
9.
Sussner BD, Smelson DA, Stephanie R, et al.: The validity and reliability of a brief measure of cocaine craving. Drug Alcohol Depend 2006; 83:233–237
10.
Bayle FJ, Krebs MO, Martin C, et al.: French version of Wender Utah rating scale (WURS). Can J Psychiatry 2003; 48:132
11.
Kessler RC, Adler L, Ames M, et al.: The World Health Organization Adult ADHD Self Report Scale (ASRS): a short screening scale for use in the general population. Psychol Med 2005; 35:245–256

Information & Authors

Information

Published In

Go to The Journal of Neuropsychiatry and Clinical Neurosciences
Go to The Journal of Neuropsychiatry and Clinical Neurosciences
The Journal of Neuropsychiatry and Clinical Neurosciences
Pages: E49 - E50
PubMed: 25093790

History

Published online: 1 July 2014
Published in print: Summer 2014

Authors

Details

Bruce Imbert, M.D.
Dept. of Addictology, Sainte-Marguerite University Hospital, APHM, Marseille, France
Nathalie Labrune, M.D.
Dept. of Addictology, Sainte-Marguerite University Hospital, APHM, Marseille, France
Christophe Lancon, M.D., Ph.D.
Nicolas Simon, M.D., Ph.D.
Dept. of Psychiatry, Sainte-Marguerite University Hospital, APHM, Marseille, France
Dept. of Addictology, Sainte-Marguerite University Hospital, APHM, Marseille, France
Self-Perceived Health Assessment Research Unit, Aix-Marseille University, Marseille, France
Dept. of Addictology, Sainte-Marguerite University Hospital, APHM, Marseille, France
Dept. of Clinical Pharmacology, Timone University Hospital, Marseille, France
Self-Perceived Health Assessment Research Unit, Aix-Marseille University, Marseille, France

Notes

Send correspondence to Dr. Imbert; e-mail: [email protected]

Competing Interests

The authors report no financial relationships with commercial interests.

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