CAS: 1133229-30-7

Levetiracetam-d6 is a metabolite of levetiracetam, which is an antiepileptic drug. Levetiracetam-d6 is used as a marker for the determination of plasma concentrations and bioequivalence of levetiracetam. It is also used to study the pharmacokinetics of levetiracetam in healthy Chinese subjects. The plasma concentration-time profile and terminal half-life of levetiracetam and its major metabolite, levetiracetam-d6, were determined from serial blood samples taken from healthy Chinese volunteers following a single oral dose of 1000 mg (2000 mg) levetiracetam. The pharmacokinetic parameters were calculated using noncompartmental analysis with WinNonlin software (Pharsight Corporation). The mean ± SD Cmax and Tmax values for the two substances were 1220 ± 607 ng/mL and 0.5 ± 1 hour, respectively, for

Applications Levetiracetam-d6 is a labelled (S)-enantiomer of the ethyl analog of Piracetam (P500800), an anticonvulsant. References Gower, A.J., et al.: Eur. J. Pharmacol., 222, 193 (1992), Kasteleijn-Noist Trenite, D.G.A., et al.: Epilepsy Res., 25, 225 (1996), Patsalos, P.N., et al.: Pharmacol. Ther., 85, 77 (2000),