Patent 7651706 was granted and assigned to Wakunaga Pharmaceutical on January, 2010 by the United States Patent and Trademark Office.
The present invention relates to a liquid preparation containing crude drug extracts in an amount of 5 to 50 w/v % in terms of a dry extract weight based on the whole amount of the liquid preparation, characterized by containing saccharides in an amount of 5 to 40 w/v % based on the whole amount of the liquid preparation and adjusting a pH to 4.5 to 5.5.