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Enzalutamide Seizures — RACP Adult Medicine MCQ

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ModerateMedical OncologyEnzalutamide SeizuresRACP Adult Medicine

A 55-year-old man on enzalutamide for mCRPC develops seizures. CT brain normal. Cause?

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Correct answer: BEnzalutamide-induced seizure (crosses BBB, lowers seizure threshold)

Enzalutamide: crosses BBB, GABA-A inhibition → seizures (~0.9%). Contraindicated with seizure history. Permanently discontinue.

Reference: AMH – 2025; Cancer Council – 2023