INFLUENCE OF BINDING SOLUTION CONCENTRATION, DRYING DURATION AND DRYING TEMPERATURE ON PHYSIOCHEMICAL PERFORMANCE OF NORFLO XACIN GRANULES AND TABLETS
- Vol.11(10)
- M P Innovare Academic Sciences Pvt Ltd 2019
- 71-79p.
Objective : To investigate the possible individual and joined i nfluences that binding solution concentration, dryi ng temperature and drying duration might have on the physiochemical attributes of gran ules and tablets using norfloxacin as a model drug. Methods : According to implemented 2 3 central composite designs, each of the investigate d variables were examined at 5 different levels thr ough different 16 formulation runs. For each formulation , obtained granules were qualified for their bulk d ensity, tap density, Hausner ratio, percent of fine and drug content properties whereas the respec tive tablets were evaluated for their weight variat ion, drug content, friability, hardness, disintegration, and drug dissolution attributes. Results: Indicated that concentration of binder solution, as compared to drying temperature and drying duration , measured more profound influences on granules' tap density, Hausner ratio, % fine and drug content either through its individu al linear and quadratic effects or through its joint effect with drying durations (p<0.05 at 95% C I for all influences). Whilst tablets' friability a ppeared to be noticeably influenced by the three investigated variables (P ranged 0.001-0.017 at 95% CI), tablets' hardness and disintegration were fou nd to be considerably affected only by binder solution concentration (p = 0.001 and 0.082 at 95% CI, respectively). Moreover, none of the investigat ed variables has measured a significant influence on tablets' drug content or drug dissolut ion properties. Conclusion: The study concluded that quadratic and joint influe nces of variables on attributes of granule and tabl et formulations shouldn't be overlooked and better to be considered in the scree ning design.