The pharmacology instructor is discussing drugs used for the treatment of partial seizures. What accurately describes the physiological action of carbamazepine?
A) Reduces electrical activity
B) Alters sodium and calcium channels
C) Increases gamma-aminobutyric acid (GABA) activity and blocks sodium and calcium channels to stop action potentials
D) Depresses conduction in the brainstem and cortex
C
Feedback:
Carbamazepine increases GABA activity and blocks sodium and calcium channels to stop action potentials. Succinimides reduce electrical activity. Acetazolamides reduce electrical activity and alter sodium and calcium channels. Barbiturates depress conduction in the brainstem and the cortex.
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