A Functional Polymorphism of the <i>μ</i>‐Opioid Receptor Gene (<i>OPRM1</i>) Influences Cue‐Induced Craving for Alcohol in Male Heavy Drinkers

Abstract

A stronger urge to drink alcohol after exposure to an alcoholic beverage might contribute to a heightened risk for developing alcohol-related problems in individuals with a copy of the G allele. The G allele might also predispose to drug use in general.