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Physical characteristics of bilayer tablets formulation.
| Parameter | Experimental value | |
|---|---|---|
| Drug content (n = 3) | Atorvastatin | 98.52 ± 2.10% |
| Atenolol | 98.62 ± 1.63% | |
| Hardness (n = 6) | 7.30 ± 0.12 kg cm−2 | |
| Friability (n = 6) | 0.54 ± 0.12% | |
| Weight variation (n = 20) | 258.2 ± 2.04 mg | |
| Floating lag time (n = 6) | 8.02 ± 0.42 min | |
| Floating duration (n = 6) | 12.16 ± 0.57 h | |
