“ Ethanol increases free amitriptyline plasma concentrations most dramatically during the period of drug absorption; this is due to a decrease in amitriptyline hepatic clearance, resulting in decreased first-pass extraction.”
“In the presence of ethanol, amitriptyline free plasma concentrations were increased by a logarithmic mean of 204%, 186% and 127% at 1.5, 2, and 2.5 h, respectively, and amitriptyline free AUC0–8h was increased by 48%±13% ( $$\bar x$$ ± SEM) (t=5.21,p<0.01).”