Development of medicated chewing gum of taste masked levocetirizine dihydrochloride using different gum bases: in vitro and in vivo evaluation
Abstract
Abstract Objective: The aim of this study was to develop medicated chewing gum (MCG) formulation for taste-masked levocetirizine dihydrochloride (LCZ) that can provide fast drug release into the salivary fluid. Methods: Taste-masked LCZ was first prepared by two methods: cyclodextrin complexation using Kleptose or Captisol and formation of drug resin complex using Kyron T-154 or Kyron T-314 to overcome poor LCZ palatability. MCGs were then prepared using the taste-masked drug, gum base (Artica-T, Chicle, or Health In Gum (HIG), plasticizer (glycerol or soy lecithin at 6 or 8% of the final gum weight). The developed MCGs were evaluated for physical properties, content uniformity, and drug release. Best release MCGs were evaluated thermally to investigate the plasticizer effectiveness and for ex vivo chew out study to confirm adequate drug release. Drug bioavailability was determined for selected formula compared to commercial tablets. Results: Based on taste-masking efficiency, drug/Kleptose complex (1:3 molar ratio) was chosen for incorporation into chewing gums. Physical properties and drug release showed that gum base type, plasticizer type, and level affected not only physical properties but also drug release from MCGs. Thermal study showed decreased glass transition temperature (Tg) with increased plasticizer level. Chew out study confirmed almost complete drug release after a few minutes of chewing. Pharmacokinetic results showed shorter t max (0.585 vs. 1.375 h) and…
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