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Year : 2017  |  Volume : 13  |  Issue : 51  |  Page : 400-406

A novel strategy for bitter taste masking of gankeshuangqing dispersible tablets based on particle coating technology

1 College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, PR China
2 Pharmacy, Maternal and Child Health Care Hospital of Changzhi, Changzhi 046011, PR China
3 Central Laboratory, The Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Chengdu 610072, PR China
4 Key Laboratory of Modern Preparation of Traditional Chinese Medicine, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, PR China

Correspondence Address:
Li Han
College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 610075
PR China
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/pm.pm_240_16

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Background: Currently, acute upper respiratory tract infections (AURTIs) are increasingly becoming a significant health burden. Gankeshuangqing dispersible tablets (GKSQDT) which have a good effect on treating AURTIs. GKSQDT is composed of baicalin and andrographolide. However, its severe bitterness limits application of patients. Due to the addition of plentiful accessories, common masking methods are unsuitable for GKSQDT. It is thus necessary to develop a new masking method. Materials and Methods: The Previous study showed that baicalin was less bitter than andrographolide. Thus, particle coating technology was adapted to prepare composite particles that baicalin coated on the surface of andrographolide to decrease bitterness. Initially, particle size of baicalin and coating time of composite was investigated to prepare composite. Then, scanning electron microscopy, wettability, and infrared (IR) spectrogram were used to characterize the microstructure of composite. Furthermore, electronic tongue test, animal preference experiment, and human sensory test were applied to evaluate the masking effect. Results: To produce composite, baicalin should be ground in vibromill for 6 min. Then, andrographolide fine powder was added to grind together for 6 min. Contact angle of composite was smaller than mixture, and more similar to baicalin. Other physical characterization including microstructure, wettability, and IR also suggested that andrographolide was successfully coated by baicalin superfine. Furthermore, taste-masking test indicated taste-masked tablets was less bitter than original tablets. Conclusion: The study indicated that particle coating technology can be used for taste masking of GKSQDT without adding other substance. Moreover, it provides a new strategy of taste masking for national medicine. Abbreviations used: AURTIs: Acute Upper Respiratory Tract Infections; GSQDT: Gankeshuangqing Dispersible Tablets; IR: Infrared Spectrogram; LHPC: Low-substituted Hydroxypropyl Cellulose; CAs: Contact Angles; FTIR: Fourier Transform Infrared Spectra.

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