Formulation and statistical optimization of bilayer sublingual tablets of levocetirizine hydrochloride and ambroxol hydrochloride
Abstract
ABSTRACTObjective: The aim of the present study is to formulate and optimize bilayer sublingual tablets of Levocetrizine hydrochloride and Ambroxolhydrochloride using a 2 response surface methodology employing design expert-10.0. Sodium starch glycolate and Camphor were selected asindependent variables while disintegration time (sec) and water absorption ratio (%) were considered as responses. 3Methods: The bilayer sublingual tablets were prepared by direct compression and evaluated for various evaluation parameters including hardness,thickness, friability, drug content uniformity, wetting time, water absorption ratio and disintegration time. The prepared optimized bilayer sublingualtablets of Levocetrizine hydrochloride and Ambroxol hydrochloride having above 2 responses-disintegration time (sec) and water absorption ratio.Results: The optimized batch having concentration of sodium starch glycolate and camphor was found within the standard limit of parametersdisintegrationtime (sec) and waterabsorption ratio(%) as 61 sec and 69.67%.Conclusion: The direct compression method in this study is relatively simple and safe and a stable, effective and pleasant tasting bilayer sublingualtablet, which has a good balance over disintegration time and water absorption ratio, was formulated.Keywords: Levocetirizine hydrochloride, Ambroxol hydrochloride, Croscarmellose sodium, Sodium starch glycolate, Camphor, Statistical optimization.
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