What is topiramate and what is its evidence in SUD treatment?

• A. An anticonvulsant with some evidence for reducing alcohol craving and consumption; used off-label for AUD.
• B. A benzodiazepine used for withdrawal.
• C. An antidepressant with strong efficacy in AUD.
• D. A stimulant used for cocaine use disorder.

Answer: (A)

Topiramate is an anticonvulsant that helps stabilize brain excitability by modulating GABA and glutamate systems, which can blunt the rewarding effects of alcohol and reduce craving. In people with alcohol use disorder, multiple randomized trials have shown that topiramate can lower heavy drinking days and overall alcohol consumption and can increase the number of abstinent days, especially at higher doses. Because of these findings, clinicians often use it off-label for AUD, meaning it’s prescribed for this purpose even though it isn’t specifically approved for AUD by regulators. It is not a benzodiazepine used for withdrawal, nor a true antidepressant with strong proven efficacy in AUD, nor a stimulant for cocaine use disorder. Common side effects include cognitive slowing, dizziness, tingling, and weight loss, so careful dosing and monitoring are important.