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Similarity Factor (f 2) Values of F4 (Reference) with (F1–F3 and F5–F8) Famotidine SR Formulations
| Comparison | f 2 | Dissolution profile |
|---|---|---|
| F4 and F1 | 8.24 | Dissimilar |
| F4 and F2 | 15.42 | Dissimilar |
| F4 and F3 | 23.82 | Dissimilar |
| F4 and F5 | 56.02 | Similar |
| F4 and F6 | 70.4 | Similar |
| F4 and F7 | 51.78 | Similar |
| F4 and F8 | 41.48 | Dissimilar |
| F4 and F9 | 34 | Dissimilar |
