Figure 1.
Repeated amitifadine subcutaneous injections interacting with chronic subcutaneous nicotine infusion, weekly means. Data represent mean ± SEM, N = 8–12 per treatment. “1” and “2” refer to the first and second weeks of treatment. “Res” refers to the week of resumed access to nicotine for self-administration after the week of enforced abstinence. “Post” refers to the week of continued nicotine self-administration after the end of therapeutic treatment.