What are the four phases of pharmacokinetics that a drug goes through?

Question

Quizplus · Accepted Answer

The four phases of pharmacokinetics that a drug goes through are absorption (entrance of drug into the body), distribution (transport of drug to the target site), metabolism (biological transformation of drug into a different form), and excretion (elimination of drug from the body). Option A is incorrect because "passive transport" is not a distinct phase of pharmacokinetics and ionization is a factor that affects a drug's absorption and distribution. Option B is incorrect because "diffusion" and "bioavailability" are part of the absorption phase, and there is no "passive transport" phase. Option D is incorrect because "active transport" is a mechanism of drug transport that occurs during distribution and not a standalone phase of pharmacokinetics.

What Are the Four Phases of Pharmacokinetics That a Drug