Varenicline Treatment for Smoking Cessation in Patients With Bipolar Disorder

Patients will be randomly assigned to receive either varenicline or placebo for 12 weeks. Patients assigned to varenicline will receive 0.5mg by the oral route once a day for 3 days, followed by 0.5mg twice a day for 4 days. After the first week the dose will be increased to 1mg twice daily for the remainder of the active treatment period of the study, i.e. 11 weeks. Patients assigned to placebo will receive identical looking capsules in a dosage schedule similar to varenicline. Patients will be instructed to take study medication after meals with a glass of water.

Patients will be randomly assigned to receive either varenicline or placebo for 12 weeks. Patients assigned to varenicline will receive 0.5mg by the oral route once a day for 3 days, followed by 0.5mg twice a day for 4 days. After the first week the dose will be increased to 1mg twice daily for the remainder of the active treatment period of the study, i.e. 11 weeks. Patients assigned to placebo will receive identical looking capsules in a dosage schedule similar to varenicline. Patients will be instructed to take study medication after meals with a glass of water.