Enhancing the Effects of Alcohol Treatment With Lamotrigine

Inclusion Criteria: * 16 to 24 years old, inclusive * Self-reports consuming alcohol ≥ 2 days/week on average in the past 90 days of which ≥ 5 days involved ≥ 4 drinks within a 2-hr period (i.e., binge drinking) for boys and ≥ 3 drinks for girls * Meet the DSM-5 criteria for alcohol use disorder (AUD) * Be interested in reducing alcohol use * Be able to read simple English * Females taking estrogen-containing oral contraceptives have to agree to use secondary methods of birth control, such as condoms because lamotrigine lowers the effectiveness of estrogen-containing oral contraceptives. Sexually active females cannot be in this study if they do not agree to use a barrier method of birth control (condom) every time they engage in sexual intercourse. Exclusion Criteria: * Currently receiving formal AUD treatment * Significant alcohol withdrawal symptoms * Coexisting moderate or severe substance use disorder other than cannabis and nicotine, as defined by DSM-5 criteria. * Positive urine toxicology screen any substances other than cannabis (THC) * Currently taking a pharmacotherapy for AUD, a carbonic anhydrase inhibitor, or a glucuronidation * Compelled to alcohol treatment by the justice system or has probation or parole requirements that might interfere with study participation * History of rash that was serious, required hospitalization, or related to lamotrigine * Have a history of any serious, unstable medical illness including seizures or hepatic, renal, gastroenterol…