Figure 3.

Nicotine plasma concentration after repeated intake of nicotine lozenges or gum (31 subjects). Nicotine plasma concentrations were determined from blood samples of 31 volunteers drawn before hourly administration of 1 or 2 mg nicotine lozenge or 4 mg nicotine gum (unconnected data points). Consecutive blood samples (connected data points) were drawn after administration of dose 12 (t = 11 h).