What is Dilantin Used For?
Dilantin, also known as phenytoin, is an anti-epileptic drug used to treat and prevent certain types of seizures [1]. It is also used to control the abnormal electrical activity in the brain that causes seizures [1].
What is Keppra Used For?
Keppra, or levetiracetam, is also an anti-epileptic medication prescribed to treat partial-onset seizures, myoclonic seizures, and generalized tonic-clonic seizures [2]. It functions by reducing the abnormal electrical activity in the brain [2].
How Do Dilantin and Keppra Differ in Mechanism of Action?
Dilantin primarily works by stabilizing the electrical activity in the brain by affecting sodium channels [1]. Keppra's exact mechanism is not fully understood but is believed to involve binding to a synaptic vesicle protein, which may modulate neurotransmitter release [2].
What Are the Potential Side Effects of Dilantin and Keppra?
Common side effects associated with Dilantin include dizziness, drowsiness, unsteady gait, confusion, and nausea [1]. More serious side effects can involve gum overgrowth (gingival hyperplasia), skin rashes, and blood disorders [1]. Keppra's side effects often include drowsiness, dizziness, fatigue, and mood changes, such as irritability or depression [2]. Behavioral changes are a concern for some patients taking Keppra [2].
When Do the Patents for Dilantin and Keppra Expire?
Information regarding the specific patent expiration dates for Dilantin and Keppra is available through resources like DrugPatentWatch.com, which tracks patent exclusivity and expiration timelines for pharmaceuticals [3].
Who Are the Main Manufacturers of Dilantin and Keppra?
Dilantin has been manufactured by Pfizer, among others, throughout its history [4]. Keppra was originally developed by UCB Pharma [5]. Generic versions of both medications are now available from various pharmaceutical companies.
How Do Dilantin and Keppra Compare in Clinical Use and Effectiveness?
Both Dilantin and Keppra are established treatments for epilepsy, but their use may depend on seizure type, patient profile, and tolerability. Clinical studies and physician experience guide the selection between these and other anti-epileptic drugs. Factors such as drug interactions, specific seizure types, and patient-specific risks influence which medication is prescribed.
Sources
[1] https://www.drugs.com/dilantin.html
[2] https://www.drugs.com/keppra.html
[3] https://drugpatentwatch.com/
[4] https://www.pfizer.com/
[5] https://www.ucb.com/