Table of Contents
ISRN Pharmaceutics
Volume 2012 (2012), Article ID 950162, 7 pages
Research Article

Evaluation of an Innovative Over-the-Counter Treatment for Symptoms of Reflux Disease: Quick-Dissolving Alginate Granules

1Technostics Ltd., Daisy Building, 2nd Floor, Castle Hill Hospital, Cottingham, East Yorkshire HU16 5JQ, UK
2Global Professional Relations, Reckitt Benckiser Group plc, 103-105 Bath Road, Slough, Berkshire SL1 3UH, UK

Received 24 October 2012; Accepted 13 November 2012

Academic Editors: F. Fullas, Y. Murata, and G. Ragno

Copyright © 2012 Vicki Strugala et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Traditional antacids and alginate-based reflux suppressants are OTC products commonly used to treat reflux symptoms. There has been a lack of innovation of new formulations in this therapy area despite consumers finding established products unpalatable. Here we evaluate a novel product formulation which takes the form of quick-dissolving alginate granules in single-dose sachets (Gaviscon Direct Powder (GDP)). Market research and taste evaluation confirmed that reflux sufferers considered GDP to have good flavour and taste, no chalky aftertaste and dissolved rapidly in the mouth with 68% noting so within 10 seconds. GDP was considered convenient and easy to use. The consumer-driven product development was also shown to form a strong alginate raft in standardised in vitro conditions that met the specifications of the BP monograph (raft strength > 7.5 g). Gastric retention of GDP and a test meal was investigated in healthy volunteers using gamma scintigraphy in comparison to Liquid Gaviscon. Both products formed an alginate raft in the stomach above the test meal and emptied after the meal. The gastric retention of the GDP product was found to be noninferior to Liquid Gaviscon. In conclusion, the innovative GDP product formed an effective raft and was well liked by consumers.