Current oral and non-oral routes of antiepileptic drug delivery |
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Authors: | Anderson Gail D Saneto Russell P |
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Institution: | Department of Pharmacy, University of Washington, Seattle, Washington, USA. gaila@u.washington.edu |
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Abstract: | Antiepileptic drugs are commonly given orally for chronic treatment of epilepsy. The treatment of epilepsy requires administration of medications for both acute and chronic treatment using multiple types of formulations. Parenteral routes are used when the oral route is unavailable or a rapid clinical response is required. Lorazepam and midazolam can be administered by the buccal, sublingual or intranasal routes. Consensus documents recommend rectal diazepam, buccal midazolam or intranasal midazolam for the out-of-hospital treatment of early status epilepticus. In the United States, diazepam is the only FDA approved rectal formulation. With the lack of parenteral, buccal or intranasal formulations for many of the antiepileptic drugs, the use of the rectal route of delivery to treat acute seizures or to maintain therapeutic concentrations is suitable for many, but not all antiepileptic medications. There is a significant need for new non-oral formulations of the antiepileptic drugs when oral administration is not possible. |
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