Abstract
The release profiles of l-phenylalanine and metronidazole from individual microspheres conform to the Higuchi model for release by leaching of drugs from granular spherical pellets. The release profiles from a population of microspheres also conformed to the Higuchi model. The agreement between the Higuchi parameters for the cumulative release profile and that of a simple mathematical profile obtained by addition of the individual profiles suggests that the release mechanism of a population is identical to the mechanism of release from individuals that comprise the population.
Original language | English |
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Pages (from-to) | 215-220 |
Number of pages | 6 |
Journal | Journal of Controlled Release |
Volume | 14 |
Issue number | 3 |
DOIs | |
State | Published - Dec 1990 |
Keywords
- Higuchi model
- albumin
- individual, population kinetics
- microspheres
- sustained release pattern