Evaluating The ADHD Medication VYVANSE CII Demonstrated No Change In Pharmacokinetic Profile Of VYVANSE When Coadministered With Prilosec OTC 40 Mg
Shire plc (LSE: SHP, NASDAQ: SHPGY), the global specialty biopharmaceutical company, announced results of a study showing that coadministration of the ADHD medication VYVANSE® (lisdexamfetamine dimesylate) CII with the proton pump inhibitor (PPI) Prilosec OTC® 40 mg (20 mg X 2), did not alter the median time it took for maximum plasma concentration of d-amphetamine to be reached in the subjects evaluated. In the same study, coadministration of Prilosec OTC with ADDERALL XR resulted in a nearly 45 percent reduction in the median time to reach maximum plasma concentrations of amphetamine, the active medication. Other pharmacokinetic parameters (maximum plasma concentration and area under curve) of active medication were not altered for either VYVANSE or ADDERALL XR when coadministered with Prilosec OTC. This study, which is the first to evaluate the pharmacokinetics of VYVANSE and ADDERALL XR taken alone and with Prilosec OTC 40 mg, was recently presented at the International Congress on Clinical Pharmacy, co-sponsored by the American College of Clinical Pharmacy (ACCP), in Orlando, FL.
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