PEBC Evaluating Exam Practice Questions - PEBC Pharmacist Evaluating Examination Exam

Access More Questions

A weakly acidic drug has a pKa of 4. At gastric pH of approximately 2, which statement about its ionization and membrane permeability is most accurate?

It is mostly un-ionized, favouring passive diffusion across lipid membranes relative to the ionized form It is mostly ionized in the stomach, increasing membrane permeability Acidic drugs are actively transported only at low pH Gastric emptying always slows acidic drug absorption

Correct Answer:

It is mostly un-ionized, favouring passive diffusion across lipid membranes relative to the ionized form

Access more questions from this quiz

Continue to PEBC Evaluating Exam Practice Questions - PEBC Pharmacist Evaluating Examination Exam for more practice questions and the full quiz experience.

Access More Questions