antiepileptic medications

Topic: Pathology

Created on Saturday, September 2 2006 by

Last modified on Saturday, September 2 2006.

 
        A) Valproic acid has no known significant interactions with other AEDs.
 
        B) Phenobarbital is a glutamate receptor antagonist.
 
        C) Gabapentin is approved as adjunct therapy only.
 
        D) Oxcarbazepine is indicated for treatment of partial seizures with secondary generalization.
 
        E) Primidone is a glutamate receptor antagonist.
 

 

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This question was created on September 02, 2006 by .
This question was last modified on September 02, 2006.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS

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A) Valproic acid has no known significant interactions with other AEDs.

This answer is correct.

The statement, "Valproic acid has no known significant interactions with other AEDs." is false.
Valproic acid causes reduction of sodium currents, causes increase of GABA-mediated currents, is indicated for treatement of complex partial seizures, is indicated for tonic-clonic, is indicated for treatment of absence seizures, is indicated for treatment of myoclonic seizures, is metabolized primarily in the liver, is a known teratogen, or evidence for its teratogenicity exists, is associated with an increased risk of spina bifida if taken during pregnancy, and is excreted in breast milk.  (See References)

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B) Phenobarbital is a glutamate receptor antagonist.

This answer is incorrect.

The statement, "Phenobarbital is a glutamate receptor antagonist." is true.
Phenobarbital causes reduction of sodium currents, causes increase of GABA-mediated currents, is a glutamate receptor antagonist, works via an unknown mechanism, is indicated for treatment of partial seizures, is indicated for tonic-clonic, is metabolized primarily in the liver, induces hepatic enzymes, is a known teratogen, or evidence for its teratogenicity exists, is excreted in breast milk, and can be given as a loading dose.  (See References)

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C) Gabapentin is approved as adjunct therapy only.

This answer is incorrect.

The statement, "Gabapentin is approved as adjunct therapy only." is true.
Gabapentin causes increase of GABA-mediated currents, is a glutamate receptor antagonist, is indicated for treatment of partial seizures, is indicated for tonic-clonic, is metabolized primarily by the kidney, is approved as adjunct therapy only, is excreted in breast milk, and has no known significant interactions with other AEDs.  (See References)

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D) Oxcarbazepine is indicated for treatment of partial seizures with secondary generalization.

This answer is incorrect.

The statement, "Oxcarbazepine is indicated for treatment of partial seizures with secondary generalization." is true.
Oxcarbazepine causes reduction of sodium currents, is indicated for treatement of complex partial seizures, is indicated for treatment of partial seizures, is indicated for treatment of partial seizures with secondary generalization, is metabolized primarily in the liver, is approved as adjunct therapy only, induces hepatic enzymes, and is excreted in breast milk.  (See References)

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E) Primidone is a glutamate receptor antagonist.

This answer is incorrect.

The statement, "Primidone is a glutamate receptor antagonist." is true.
Primidone causes reduction of sodium currents, causes increase of GABA-mediated currents, is a glutamate receptor antagonist, works via an unknown mechanism, is indicated for treatement of complex partial seizures, is indicated for treatment of partial seizures, is indicated for tonic-clonic, induces hepatic enzymes, is a known teratogen, or evidence for its teratogenicity exists, and is excreted in breast milk.  (See References)

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References:

1. Browne, T.R., & Holmes, G.L. (2004). Handbook of Epilepsy, 3rd Edition. Lippincott Williams & Wilkins, Philadelphia., Leppik, I.E. (2001). Contemporary Diagnosis and Management of the Patient with Epilepsy, 5th Edition. Handbooks in Health Care, Newtown, Pennsylvania.

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pathology
antiepileptic medications
Question ID: 540025025
Question written by . (C) FrontalCortex.com 2006-2009, all rights reserved. Created: 09/02/2006
Modified: 09/02/2006
Estimated Permutations: 0