Question

What is bioavailability?

(a) The time of absorption of the drug from its dosage form

(b) The rate of absorption of the unchanged drug from its dosage form

(c) The time of absorption of the unchanged drug from its dosage form

(d) The rate of absorption of the drug from its dosage form

I have been asked this question in a job interview.

I would like to ask this question from Bioavailability topic in chapter Compartment Modelling, Non Linear Pharmacokinetics, Bioavailability and Bioequivalence of Drug Biotechnology

Answer 1

Right option is (b) The rate of absorption of the unchanged drug from its dosage form

To explain: Physiologic availability, biologic availability or just bioavailability is defined as the rate or the amount of absorption of an unchanged drug from its dosage form. The rate with which the drug is getting absorbed is important since in some treatment such as asthma attack rapid onset action is required.