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# Calculation of Drug Concentration

## Uniform Multiple IV Bolus Dose Regimen

A patient is started on a drug at an IV bolus dose of 250 mg every 12 hours. Calculate the drug concentration at a few of time points during the first three dosing interval. Graph these data on semi-log graph paper (The graph is not required for this homework exercise). Specifically calculate the concentration three hours after the first dose, two hours after the second dose and one hour after the third dose.
Assume a one compartment linear model applies to this drug in this concentration range.
The Clearance and V for this drug in this patient are 10.8 L/hr and 40.7 L, respectively.

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**The equation:**

**Equation 25.2.1 Drug Concentration, Cp, after Multiple IV Bolus Doses (Uniform Dosing Interval and Dose)**

Last update: Sat 28 Nov 2015 04:52:10 pm

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