Rheology is a difficult subject! So what should you know in order to answer a question on rheology in a pharmacy exam? Here we review the key things you need to know to pass your exam!

- How to define Newtonian and non-Newtonian materials
- Shear-thinning materials (plastic and pseudoplastic behaviour)
- Shear-thickening materials (dilatant behaviour)
- Time-dependency (thixotropy and rheopexy)
- Formulation aspects