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Evidence-Based Reviews


Beating nicotine: Medication algorithm helps teens quit

For motivated daily smokers, benefits of pharmacotherapy may outweigh the risks.

Vol. 6, No. 10 / October 2007

CASE: Depressed, irritable — and smoking

Michael, age 16, is admitted to a psychiatric unit for severe depressive symptoms and suicidal ideation. The next day, he is irritable and refuses to cooperate with the interview. During group therapy he is distractible and unable to focus. The treating psychiatrist learns that before admission Michael had been smoking 10 to 15 cigarettes per day and now feels a strong craving for cigarettes.

Unrecognized nicotine dependence can be problematic on inpatient psychiatric units, where adolescents such as Michael are not permitted to smoke and rarely are offered nicotine replacement therapy (NRT). Unfortunately, psychiatrists seldom diagnose and treat nicotine dependence—particularly in adolescents—whether in outpatient or inpatient settings.1,2

Do adolescent smokers need help quitting? Do they experience withdrawal symptoms when they stop smoking? Are pharmacologic interventions appropriate? For each question, the answer is a resounding yes.

To help you treat young smokers, this article offers:

  • tools for assessing adolescent tobacco use and dependence
  • evidence-based treatment options
  • an algorithm to guide treatment choice.

Not just a ‘phase’

Early smoking—especially among those younger than age 13—is associated with adolescent psychopathology, including depressive disorders and other substance use disorders.3 Compared with nonsmoking teens, those who smoke at least monthly are significantly more likely to smoke as adults.4 Among high school seniors:

  • >20% report smoking cigarettes in the past 30 days
  • 12% smoke daily
  • 6% smoke ≥10 cigarettes per day.5

Nicotine dependence can develop very rapidly: nearly 25% of adolescents have ≥1 symptom within 2 weeks of starting to smoke at least once a month.6

Role of parents. Early intervention for teen nicotine addiction is particularly important because of the long-term health risks associated with tobacco use.7 In our experience, however, teen smokers’ parents’ attitudes can make addressing adolescent nicotine dependence a therapeutic challenge.

Box 1

Self-report tools for assessing teen nicotine dependence

Modified Fagerstrom Tolerance Questionnaire8 (7 items)

Stanford Dependence Inventory (SDI)9 (5 items)

Hooked on Nicotine Checklist (HONC)10 (10 items)

Nicotine Dependence Scale for Adolescents11 (6 items)

Cigarette Dependence Scale (CDS-5 and CDS-12)12 (5 or 12 items)

Parents may be unaware of their teens’ smoking, and those who are aware may:

  • not know what help is available
  • dismiss teen smoking as “just a phase”
  • feel that smoking cigarettes is preferable to smoking marijuana or using other illicit drugs.

Other parents have no objections because they themselves smoke. Some permit their teens to smoke and may even give them cigarettes.

Parents who want their teens to stop smoking often believe erroneously that the best method is to quit “cold turkey.”

Assessing use and dependence

Teen smokers’ nicotine withdrawal symptoms—such as irritability, anxiety, and impaired concentration—can imitate or exacerbate other psychiatric symptoms, thus complicating diagnosis and treatment. Ask all adolescent patients about the quantity, frequency, pattern, and duration of use of all forms of tobacco, including:

  • cigarettes
  • cigars
  • cigarillos (short, narrow cigars)
  • bidis (thin, flavored South Asian cigarettes wrapped in leaf)
  • smokeless tobacco.

Dependence. Establishing nicotine dependence in young smokers is more complicated than in adults because of teen smokers’ variable smoking patterns. Several self-rating scales have been developed to assess nicotine dependence in adolescents (Box 1).8-12 Although some of these tools have been used primarily in research, outpatient psychiatrists may find these scales useful for evaluating adolescents’ smoking.

Some DSM-IV-TR criteria for substance dependence may not apply to nicotine dependence or correlate with other validated measures of nicotine dependence. For example, “significant time spent obtaining, using, or recovering from the effects of a substance” might not apply to all adolescent smokers.13 Based on our clinical experience, daily smoking for an extended period of time (several months) is a marker of dependence for almost all adolescents.

The Timeline Follow Back method can help you capture a more complete picture of adolescent tobacco use over time.14 This involves asking teens about tobacco use over the past 30 or 90 days, beginning with the assessment day and working backward. Record tobacco use on a calendar, using holidays, weekends, and events as anchor points to help teens recall their smoking.

Biomarker tests can be used to measure nicotine use. The 2 most common are:

  • expired carbon monoxide (CO) level (essentially a “breathalyzer” for smoking)
  • cotinine level—a metabolite of nicotine.

Expired CO testing is simple to conduct but requires specialized equipment that costs approximately $1,000. Marijuana use may affect CO results, but NRT will not. Measuring CO levels provides information about cigarette smoking over the past several hours, compared with the past several days with cotinine.15

Cotinine can be tested in serum, saliva, or urine. Serum testing can be expensive and may require shipping samples to a specialized laboratory for processing. Testing saliva or urine is less expensive and may be conducted in an office. Cotinine testing in teens who use NRT may be unreliable because the nicotine in these products will be metabolized to cotinine and yield a positive result.

CASE CONTINUED: Wanting to quit

Michael was placed on a 21-mg transdermal nicotine patch, which greatly reduced his craving and irritability. He expressed an interest in quitting smoking. Given Michael’s depressive symptoms, bupropion SR was initiated to treat his depression and assist with smoking cessation.

Treatment options

Optimal smoking cessation treatment includes a combination of medication and behavioral counseling.16

Pharmacologic treatments. FDA-approved medications for adult smoking cessation include NRT—available as a gum, inhaler, nasal spray, lozenge, or transdermal patch—bupropion SR, and varenicline. Although not FDA-approved for patients younger than age 18, NRT and bupropion SR have been evaluated for smoking in adolescents.

NRT helps smokers by reducing nicotine withdrawal symptoms during cessation. Only nicotine gum and transdermal nicotine patch have been studied in adolescents. Results are modest at best, although in some studies including behavioral treatments may have obscured any medication effect (Table 1).17-20

Bupropion SR. How bupropion SR helps patients stop smoking is not completely clear. Three studies have evaluated bupropion SR in adolescents; 2 had positive results, but all 3 had important limitations (Table 2).21-23

One of the 2 positive studies included only 16 patients and had an open-label design.22 The second—a larger randomized, placebo-controlled trial23—found that bupropion SR improved nicotine abstinence compared with placebo at 6 weeks, but this effect did not last after subjects stopped taking the drug.

The third bupropion SR study used 150 mg/d (the recommend adult dose is 300 mg/d) and had poor medication adherence.21 The difference in abstinence rate compared with placebo was not statistically significant.

Other medications. Varenicline—a partial nicotine receptor agonist recently approved for adult smoking cessation—has not been studied in adolescents. Nortriptyline, doxepin, selegiline, clonidine, and mecamylamine have shown promise in adult smokers but are not approved for smoking cessation and require further study, especially in young smokers.24-27

Pharmacotherapy risks. NRT can cause nicotine overdose symptoms, such as rapid heart rate or nausea, especially if used while smoking. Transdermal NRT can cause a local reaction at the application site and can cause burns if worn while undergoing magnetic resonance imaging.28

Adverse effects associated with bupropion SR include a small risk of seizure, weight loss, and insomnia. This drug is contraindicated for patients who:

  • have a seizure disorder
  • have ever been diagnosed with bulimia or anorexia nervosa
  • are taking other bupropion formulations.

Patients should not take bupropion SR during abrupt discontinuation of alcohol or sedatives or within 14 days of taking a monoamine oxidase inhibitor.29

Table 1

Can the nicotine patch help teens quit smoking?

Authors

Study population

Study design

Abstinence rate

Smith et al, 199617

13- to 17-year-olds (N=22) who smoked ≥20 cpd

8 weeks of open-label treatment with transdermal NRT plus behavioral counseling and group support

14% at 8 weeks, 4.5% at 3 and 6 months

Hurt et al, 200418

13- to 17-year-olds (N=101) who smoked ≥10 cpd

6 weeks of open-label treatment with transdermal NRT plus self-help material and brief individual counseling if requested

11% at 6 weeks, 5% at 6 months

Hanson et al, 200319

13- to 19-year-olds (N=100) who smoked ≥10 cpd

10 weeks of double-blind treatment with transdermal NRT or placebo plus CBT and contingency management

20% (active) vs 18% (placebo); not statistically significant

Moolchan et al, 200520

13- to 17-year-olds (N=120) who smoked ≥10 cpd

12 weeks of double-blind treatment with:

  • transdermal NRT+placebo gum
  • nicotine gum+placebo patch
  • or placebo gum+placebo patch

Concurrent CBT

17.7% (active transdermal NRT)* vs 6.5% (active gum) vs 2.5% (placebo only)

*P=0.04 for transdermal NRT vs placebo

CBT: cognitive-behavioral therapy; cpd: cigarettes per day; NRT: nicotine replacement therapy

Table 2

Teen smoking cessation: Evidence for bupropion SR

Authors

Study population

Study design

Abstinence rate

Upadhyaya et al, 200421

12- to 19-year-olds (N=16, 11 of whom had ADHD) who smoked ≥5 cpd

7 weeks of open-label treatment with bupropion SR, 150 mg bid, with brief smoking cessation counseling

31.3% after 4 weeks of medication

Killen et al, 200422

15- to 18-year-olds (N=211) who smoked ≥10 cpd

9 weeks of double-blind treatment with bupropion SR, 150 mg/d, or placebo; subjects received 8 weeks of transdermal NRT and group skills training

23% (active) vs 28% (placebo) at 10 weeks; 8% (active) vs 7% placebo) at 26 weeks; not statistically significant

Muramoto et al, 200523

14- to 17-year-olds (N=312) who smoked ≥6 cpd

6 weeks of double-blind treatment with bupropion SR, 150 mg/d; 150 mg bid; or placebo, with CBT and motivational enhancement

16.9% (150 mg bid) vs 10.3% (150 mg/d) vs 6.7% (placebo) at 6 weeks*
No differences at 26 weeks

ADHD: attention-deficit/hyperactivity disorder; CBT: cognitive-behavioral therapy; cpd: cigarettes per day; NRT: nicotine replacement therapy

*P=0.019 for 150 mg bid vs placebo

Behavioral therapy. Specialized treatments developed specifically for teen smoking cessation—such as Not On Tobacco (see Related Resources)—often are delivered in schools or other group settings. The most successful consist of ≥5 sessions and include motivational enhancement, cognitive-behavioral, and social influence-oriented approaches.30

Other behavioral treatments. Most psychiatrists are not equipped to deliver these specialized behavioral treatments. Instead, you can use simple yet effective behavioral treatments during routine office visits as adjuncts to pharmacotherapy. At the very least, we recommend the U.S. Public Health Service’s “5 As” strategy (Box 2).16

Educate patients about what to expect during withdrawal, how long withdrawal will last, and medication side effects. To help adolescents develop appropriate treatment expectations:

  • discuss the difference between a “slip” (having 1 cigarette) and a “relapse” (returning to daily smoking)
  • explain that many individuals need multiple attempts before they quit.

Encourage adolescent smokers to contact the National Network of Tobacco Cessation Quitlines (1-800-784-8669; www.smokefree.gov), which provides free access to telephone-based counseling services.

Box 2

Behavioral therapy: ‘5 As’ of smoking cessation

Ask every patient about tobacco use during every visit, and have a system for recording and tracking tobacco use in the chart

Advise patients clearly and unambiguously to stop smoking, and tailor that advice to each patient’s needs

Assess every patient’s readiness to quit

Assist patients who are ready to quit through self-help materials, referral, and/or smoking cessation treatment

Arrange follow-up visits for relapse prevention or to reassess readiness to quit

Source: Reference 16

Choosing treatment

Evidence guiding treatment choice for teen smoking cessation is limited but growing. Most studies examined daily cigarette smoking, with significantly less evidence to support treatment decisions for light (non-daily) smokers and teens who use other tobacco products.

Recommendations.We have developed a strategy to guide treatment of adolescent smokers (Algorithm). We recommend using pharmacologic interventions only for teens who smoke daily because:

  • most studies have focused on daily smoking
  • efficacy data are limited
  • pharmacologic interventions carry potential risks.

Because of bupropion SR’s contraindications and potential side effect profile, we suggest NRT in combination with smoking cessation counseling as a first-line treatment for young smokers. We recommend beginning with transdermal NRT because of the low likelihood of underdosing with the patch’s once-daily application.20 With either NRT or bupropion SR, schedule follow-up appointments to target relapse prevention and solve any issues that arise.

Continued...
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Depressed and sick with ‘nothing to live for’