Possible Interaction: Ethanol and Ecgonine

“ Ethanol pretreatment resulted in 2- to 3-fold increases in peak hepatic concentrations of cocaine, ecgonine methyl ester, and the N-oxidative metabolite norcocaine, and the areas under the hepatic concentration vs. time curve (AUCs) for these compounds were doubled.”

“ Ethanol decreases the clearance of cocaine by inhibiting the hydrolysis of cocaine to benzoylecgonine and ecgonine methyl ester by carboxylesterases, and there is a large body of literature describing this interaction as it relates to the abuse of cocaine.”