Research Article

MDMA Impairs Response to Water Intake in Healthy Volunteers

Figure 5

Relationships between antidiuretic hormone (ADH, (a)), copeptin (b), and serum sodium at 2 and 3 h after MDMA (black) or placebo (grey) in Study 2. Shaded regions indicate 95% confidence intervals of the mean as estimated with a linear model.
(a)
(b)