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CNS Pharmacology

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Question:

Flumazenil

Author: Suzuki



Answer:

Flumazenil is a GABA-receptor antagonist that can rapidly reverse the effects of benzodiazepines. The drug is available for intravenous (IV) administration only. Onset is rapid, but duration is short, with a halflife of about 1 hour. Frequent administration may be necessary to maintain reversal of a long-acting benzodiazepine. Administration of flumazenil may precipitate withdrawal in dependent patients or cause seizures if a benzodiazepine is used to control seizure activity. Seizures may also result if the patient ingests tricyclic antidepressants (TCAs). Dizziness, nausea, vomiting, and agitation are the most common side effects.


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Suzuki
Suzuki