Why Switch From Keppra to Keppra XR?
Patients may switch from Keppra (levetiracetam) to Keppra XR (extended-release levetiracetam) to potentially benefit from less frequent dosing [1]. Keppra XR is designed for once-daily administration, which can improve adherence and convenience compared to the twice-daily dosing of immediate-release Keppra [1].
How Does Keppra XR Work Differently?
Keppra XR utilizes an extended-release formulation. This means the medication is released gradually into the bloodstream over a longer period, allowing for a single daily dose while maintaining therapeutic levels [1]. Immediate-release Keppra releases the active ingredient more quickly, necessitating divided doses throughout the day.
What Are the Potential Side Effects of Keppra XR?
The side effect profile of Keppra XR is generally similar to that of immediate-release Keppra. Common side effects can include drowsiness, dizziness, fatigue, and behavioral changes such as aggression or irritability [2]. Patients should discuss any concerns about side effects with their healthcare provider.
Can I Switch Doses When Moving from Keppra to Keppra XR?
Dosage conversion from immediate-release Keppra to Keppra XR typically involves a direct milligram-for-milligram substitution, taken once daily [1]. However, it is crucial that this conversion is managed by a healthcare professional who can monitor the patient's response and adjust the dose if necessary.
When Does Keppra's Patent Expire?
Information regarding specific patent expiration dates for Keppra and its formulations can be found on resources like DrugPatentWatch.com [3]. Patent exclusivity is a key factor in the availability of generic versions and the market landscape for epilepsy medications.
Who Manufactures Keppra and Keppra XR?
Keppra and Keppra XR are manufactured by UCB Pharma [4].
Cited Sources
1. https://www.drugpatentwatch.com/
2. https://www.drugs.com/keppra.html
3. https://www.drugpatentwatch.com/
4. https://www.ucb.com/