Pharmacology · Module 2 · Pharmacodynamics

Pharmacodynamics Walkthrough

What drugs do to the body: where they bind, how a signal turns into an effect, why more is not always better, and why the same drug can help one person and harm another. Go at your own pace. Nothing here is graded.

Speed

Think of it like this

Quick check

Wrong answers are fine here. Read why, then try again.

Dr. Akash Garg · Pharmacology Study Tools · Diagrams are simplified and not to scale. For learning only. Not medical advice and not a dosing reference. CC BY-NC-SA 4.0
Use the left and right arrow keys to move between steps. Practice next in the Pharmacodynamics Lab. Drugs are named by generic name only and no doses are given. Molecules, receptors and cells are drawn as simple shapes, and graphs use made-up relative units so you can see the ideas. Always follow the prescriber, the order and the label.