Cognitive-behavioral counseling for marijuana and smoking cessation, mobile contingency management for marijuana and smoking cessation, transdermal nicotine patch (7-21 mg over six weeks), nicotine polacrilex or nicotine lozenge (4 mg administered as needed over six weeks), bupropion (150 mg once per day for 7 days, then 150 mg twice per day for about six months.
Prescribed one week prior to quit and continued until the 6 month follow-up visit.
Other Name: Zyban
Drug: transdermal nicotine patch
Initiated at smoking quit date; 7 mg to 21 mg patch depending on amount smoked by participant
Drug: Nicotine polacrilex
Initiated at smoking quit date.
Other Name: nicotine gum; nicorette
Drug: nicotine lozenge
Initiated at smoking quit date.
Behavioral: counseling for marijuana and smoking cessation
5 sessions of cognitive-behavioral counseling designed to facilitate marijuana and smoking cessation and promote relapse prevention
Behavioral: mobile contingency management
treatment that provides money rewards for abstinence from smoking and marijuana