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Anticonvulsants suppress the excessive rapid firing of neurons during seizures. [6] Anticonvulsants also prevent the spread of the seizure within the brain. [7] Conventional antiepileptic drugs may block sodium channels or enhance γ-aminobutyric acid function. Several antiepileptic drugs have multiple or uncertain mechanisms of action. [8]
Levetiracetam, sold under the brand name Keppra among others, is a novel antiepileptic drug [7] used to treat epilepsy. [8] It is used for partial-onset, myoclonic, or tonic–clonic seizures, [7] and is taken either by mouth as an immediate or extended release formulation or by injection into a vein.
As is the case for all antiepileptic drugs, it is advisable not to suddenly discontinue topiramate, as there is a theoretical risk of rebound seizures. Some studies have attributed loss of appetite and upper respiratory tract infection to topiramate, but studies have concluded these adverse events are not difficult to tolerate for most individuals.
Carbamazepine, sold under the brand name Tegretol among others, is an anticonvulsant medication used in the treatment of epilepsy and neuropathic pain. [4] [1] It is used as an adjunctive treatment in schizophrenia along with other medications and as a second-line agent in bipolar disorder.
This kind of adverse drug reaction is caused by the accumulation of toxic metabolites; it is not the result of an IgE-mediated reaction. The risk of first-degree relatives developing the same hypersensitivity reaction is higher than in the general population. [1]
Convulsions are induced in captive animals, then high doses of anticonvulsant drugs are administered. [10] [11] [12] For example, kainic acid can lead to status epilepticus in animals as it is a cyclic analog of l-glutamate and an agonist for kainate receptors in the brain which makes it a potent neurotoxin and excitant. [citation needed]
Lamotrigine has fewer drug interactions than many anticonvulsant drugs, although pharmacokinetic interactions with carbamazepine, phenytoin and other hepatic enzyme-inducing medications may shorten half-life. [84] Dose adjustments should be made on clinical response, but monitoring may be of benefit in assessing compliance. [5]
Generally, drugs outlined within the ATC code N03 should be included in this category. Please see WP:PHARM:CAT for more information. Wikimedia Commons has media related to Anticonvulsants .
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