Study: NCT00297492

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Reduction Phone Counseling
Description: Counseling of smokers to undergo gradual reduction in cigarettes per day prior to quit date. This includes 5 counseling calls: 3 calls focused on reduction prior to the quit date, 1 call two days prior to the quit date to discuss common strategies for preparing to quit, and 1 call two days after the quit date to discuss relapse prevention. Telephone counseling also discusses the proper use of nicotine lozenges during reduction and after the quit date.

Intervention type: BEHAVIORAL
Group type: ACTIVE_COMPARATOR
Intervention: Abrupt Phone Counseling
Description: Counseling of smokers to set a quit date and not change cigarettes per day prior to quit date. This includes 5 counseling calls: 1 to set a quit date, 1 two days prior to the quit date to discuss common strategies for preparing to quit, and 3 after the quit date to discuss relapse prevention. Telephone counseling also discusses the proper use of nicotine lozenges after the quit date.

Intervention type: BEHAVIORAL
Group type: ACTIVE_COMPARATOR
Intervention: Minimal Abrupt Phone Counseling
Description: Minimal counseling to mimic intervention at a primary care office. This includes 2 counseling calls: 1 to set a quit date and 1 two days after the quit date to discuss relapse prevention. Telephone counseling also discusses the proper use of nicotine lozenges after the quit date.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Pre-Quit Nicotine Lozenges
Description: 2 mg lozenges for participants usually smoke their first cigarette more than 30 minutes after awaking.~4 mg lozenge for participants who usually smoke their first cigarette less than 30 minutes after awaking.~Replace each forgone cigarette during reduction with one lozenge. Use additional lozenges to combat cravings to smoke.

Intervention type: DRUG
Group type: ACTIVE_COMPARATOR
Intervention: Post-Quit Nicotine Lozenges
Description: 2 mg lozenges for participants usually smoke their first cigarette more than 30 minutes after awaking.~4 mg lozenge for participants who usually smoke their first cigarette less than 30 minutes after awaking.~Replace each forgone cigarette while abstinent with one lozenge. Use additional lozenges to combat cravings to smoke.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Post-Quit Nicotine Lozenges
Description: 2 mg lozenges for participants usually smoke their first cigarette more than 30 minutes after awaking.~4 mg lozenge for participants who usually smoke their first cigarette less than 30 minutes after awaking.~Replace each forgone cigarette while abstinent with one lozenge. Use additional lozenges to combat cravings to smoke.

Intervention type: DRUG
Group type: ACTIVE_COMPARATOR
Intervention: Post-Quit Nicotine Lozenges
Description: 2 mg lozenges for participants usually smoke their first cigarette more than 30 minutes after awaking.~4 mg lozenge for participants who usually smoke their first cigarette less than 30 minutes after awaking.~Replace each forgone cigarette while abstinent with one lozenge. Use additional lozenges to combat cravings to smoke.