The authors review recent literature that has demonstrated an association between cigarette smoking behavior and major depression. Persons with major depression are more likely to smoke and to have difficulty when they try to stop. When they manage to succeed in stopping, such persons are at increased risk of experiencing mild to severe states of depression, including full blown major depression. The period of vulnerability to a new depressive episode appears to vary from a few weeks to several months after cessation. This knowledge suggests a relationship between smoking and depression that is complex, pernicious, and potentially life-long. It is recommended that cessation treatments incorporate screening procedures that will identify those patients with a propensity to depression and monitor the emergence of postcessation depression, particularly in those with a history of depression.
Objective
High smoking rates in adults with attention deficit hyperactivity disorder (ADHD) and nicotine’s amelioration of ADHD suggest that effective ADHD treatment might facilitate abstinence in smokers with ADHD. The present study evaluated if using osmotic release methylphenidate (OROS-MPH) to treat ADHD enhances response to smoking cessation treatment in smokers with ADHD.
Method
A randomized, double-blind, placebo-controlled, 11-week trial with a one month follow-up conducted at six clinical sites between December 2005 and January 2008. Adults (18–55), meeting DSM-IV criteria for ADHD and interested in quitting smoking were randomized to OROS-MPH titrated to 72 mg/day (n=127) or placebo (n=128). All participants received brief weekly individual smoking cessation counseling for 11 weeks and 21 mg/day nicotine patch starting on the smoking quit day (day 27) through study week 11. Outcome measures included prolonged smoking abstinence and DSM-IV ADHD Rating Scale (ADHD-RS) score.
Results
Of 255 randomized, 204 (80%) completed the trial. Prolonged abstinence rates, 43.3% and 42.2%, for the OROS-MPH and placebo groups, respectively, did not differ significantly (odds ratio, 1.1; 95% confidence interval, 0.63 – 1.79; p=0.81). OROS-MPH, relative to placebo, evidenced a greater reduction in DSM-IV ADHD-RS score (p<0.0001) and in cigarettes per day during the post-quit phase (p=.016). OROS-MPH, relative to placebo, increased blood pressure and heart rate to a statistically, but not clinically, significant degree; medication discontinuation did not differ significantly between treatments.
Conclusions
ADHD treatment did not improve smoking cessation success; OROS-MPH, relative to placebo, effectively treated ADHD and was safe and generally well tolerated in this healthy sample of adult ADHD smokers.
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