Table 4: Mathematical models for studying the drug release kinetics from dissolution profiles.
S.No | Model | Equation | Plot |
1. | Zero order | Cumulative amount of drug released versus time. | |
2. | First order | Log of percentage of drug remaining unreleased versus time. | |
3. | Higuchi | Cumulative percent release versus square root of time. | |
4. | Hixson-Crowell | Cube root of drug percentage remaining in the matrix versus time. | |
5. | Korsemeyer-Peppas | Log of the cumulative percent drug release versus log of time. |