FIGURE 1.
Plasma cortisol concentrations (μg/dL) before and after single placebo, 20, or 40 mg rimonabant doses in daily cannabis smokers. Ten cannabis smokers were administered Δ9-tetrahydrocannabinol (THC) 20 mg orally every 4–8 hours in escalating daily doses for 8 days to maintain and standardize cannabis tolerance (120 mg/day for 3 days prior to rimonabant). At 9:30 on the ninth day (arrow), subjects A, B, C, D, and E (dashed lines) received oral rimonabant 20 mg concurrently with the last dose of THC; subjects F, G, and H (gray lines) received oral rimonabant 40 mg concurrently with the last dose of THC. Subjects I and J (black lines) received placebo rimonabant.