Which MAT treats alcohol addiction?

Several medications are used in medication-assisted treatment for alcohol use disorder because alcohol addiction involves neurological changes affecting reward pathways, stress regulation, craving intensity, and compulsive drinking behavior. The most commonly used medications include naltrexone, acamprosate, and disulfiram. Each medication works through different pharmacological mechanisms and may affect alcohol-related behaviors differently.

Naltrexone affects opioid receptors involved in reward signaling and reinforcement associated with alcohol consumption. By altering these reward pathways, the medication may reduce the reinforcing effects of drinking and decrease craving intensity in some individuals. Naltrexone is available in both oral form and as the extended-release injectable medication Vivitrol.
Acamprosate works differently by affecting glutamate and GABA neurotransmitter systems involved in stress regulation, nervous system stabilization, and post-withdrawal neurological imbalance. The medication is commonly used after alcohol detoxification to support ongoing recovery stabilization. Its primary purpose is not intoxication blockade but rather support of neurological recovery processes following chronic alcohol exposure.

Disulfiram functions through a different mechanism by interfering with alcohol metabolism. If alcohol is consumed while taking disulfiram, the buildup of acetaldehyde can produce unpleasant physiological reactions such as flushing, nausea, sweating, headache, and cardiovascular symptoms. Because of these effects, disulfiram is generally used under carefully monitored clinical circumstances.

Medication-assisted treatment for alcohol use disorder is generally viewed as part of a broader recovery framework involving neurological stabilization, craving reduction, behavioral change, and relapse prevention. Medication selection may depend on drinking severity, medical conditions, psychiatric symptoms, liver function, relapse history, and overall treatment goals. Alcohol MAT commonly occurs alongside therapy, behavioral treatment, and ongoing recovery support.