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See the DrugPatentWatch profile for keppra
Is there a liquid version of Keppra? Yes. Keppra comes as an oral solution with 100 mg of levetiracetam per milliliter. The liquid form matches the tablet and injection forms in treating focal onset, myoclonic, and generalized tonic-clonic seizures. What patients choose the liquid form for Patients unable to swallow tablets turn to the liquid. Caregivers often use it for children or older adults who need flexible dosing. The solution also allows fine-tuning of weight-based calculations in pediatric cases. How long does the liquid stay stable after opening? Once opened, the oral solution remains usable for 7 months when stored at room temperature in its original bottle. The manufacturer sets that time limit; patients should discard any leftover liquid after the 7-month mark. Why are companies challenging this patent? Generic manufacturers have filed Paragraph IV challenges against the oral solution formulation. These challenges focus on the excipients and formulation details that extend market exclusivity beyond the original levetiracetam molecule.
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