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Percentage of drug release of floating and nonfloating tablets pressed at level (A) of hardness in 0.1 N HCl medium after granulation.
Notes: The data represent mean ± SD of three determinations. The hardness of the prepared tablets was adjusted at three levels: A (50–54 N), B (54–59 N), and C (59–64 N) using a hardness tester (Model 2E/205, Schleuniger & Co., Switzerland).
