A patient with alcohol use disorder is started on acamprosate. Which mechanism best explains its therapeutic effect?
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A
Blocking dopamine D2 receptors to reduce reward from alcohol
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B
Modulating glutamate and GABA systems to reduce protracted abstinence symptoms
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C
Inhibiting aldehyde dehydrogenase to produce an aversive reaction to alcohol
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D
Stimulating opioid receptors to reduce craving intensity