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Review Question - QID 109628

Pharmacokinetics Bioavailability (F) Calculation of bioavailabillity (F) = 100% * (AUC-oral * Dose-IV) / (AUC-IV * Dose-oral), where AUC is the area under the curve of a pharmacokinetic plasma concentration versus time plot QID: 109628 (M1.PH.17.4867)
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QID 109628 (Type "109628" in App Search)
A pharmaceutical company has created an experimental medication, Drug Z, for patients with relapsing-remitting multiple sclerosis. Drug Z has been deemed to be safe in rats and is nearly ready for human trials. Before initiating a Phase I clinical trial, the company would like to study the medication’s pharmacokinetic properties in humans. The drug was found to have a half-life of 2.5 hours and is eliminated by first-order kinetics. The volume of distribution of the drug is determined to be 0.5 L/kg. The drug is administered intravenously and sublingually and plasma drug concentration vs. time plots are obtained. Intravenous administration of 10 mg of Drug Z yields an area under the curve (AUC) of 15 mg hr/L. Sublingual administration of 25 mg of Drug Z yields an area under the curve of 20 mg hr/L. What is the absolute bioavailability of this medication?
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