3. Pharmaceutics

Biopharmaceutics — Quiz

Test your understanding of biopharmaceutics with 5 practice questions.

Practice Questions

Question 1

Which absorption model divides the gastrointestinal tract into sequential compartments such as stomach, duodenum, jejunum, ileum, and colon in physiologically based pharmacokinetic simulations?

Question 2

Under FDA guidance for highly variable drugs, the reference-scaled average bioequivalence approach applies when the within-subject coefficient of variation (CV) for the reference product exceeds which threshold?

Question 3

In a hydrophilic matrix tablet using hydroxypropyl methylcellulose (HPMC), the primary mechanism controlling drug release is:

Question 4

According to the Biopharmaceutics Classification System, a drug substance is considered highly soluble if the highest dose strength dissolves in no more than how many milliliters of aqueous media across the pH range of 1 to 6.8?

Question 5

A drug following first-order release kinetics releases a fraction of the dose given by $1 - e^{-kt}$. If $k = 0.2\ \mathrm{hr^{-1}}$, what percentage of the drug is released after 5 hours?