Which adverse effect is associated with topiramate?

Which adverse effect is associated with topiramate?

• A. Weight loss
• B. Hypertension
• C. Hyperglycemia
• D. Cognitive slowing

Answer: (D)

Topiramate often produces central nervous system side effects because it dampens neuronal activity across the brain. It does this by multiple mechanisms: it increases GABAergic inhibition and blocks excitatory glutamate signaling, plus it has mild carbonic anhydrase inhibition. The net result is slower processing speed, difficulty concentrating, and trouble with word-finding or memory—basically cognitive slowing. These cognitive effects are a well-recognized, dose-related adverse effect and are a common reason clinicians adjust the dose or stop the medication. Weight loss is another known effect of topiramate, but it reflects metabolic/weight-related changes rather than the immediate CNS slowing described above. Hypertension and hyperglycemia are not typical adverse effects of this drug. The cognitive impairment focus is what makes this option the best choice for describing topiramate’s adverse effect profile in this context.

Topiramate often produces central nervous system side effects because it dampens neuronal activity across the brain. It does this by multiple mechanisms: it increases GABAergic inhibition and blocks excitatory glutamate signaling, plus it has mild carbonic anhydrase inhibition. The net result is slower processing speed, difficulty concentrating, and trouble with word-finding or memory—basically cognitive slowing. These cognitive effects are a well-recognized, dose-related adverse effect and are a common reason clinicians adjust the dose or stop the medication.

Weight loss is another known effect of topiramate, but it reflects metabolic/weight-related changes rather than the immediate CNS slowing described above. Hypertension and hyperglycemia are not typical adverse effects of this drug. The cognitive impairment focus is what makes this option the best choice for describing topiramate’s adverse effect profile in this context.