abstract:Grether's Pastilles is a brand of Swiss glycerin-based, pastille candies that are currently distributed by the Swiss conglomerate Doetsch Grether LTD (who have done so since 1930).Grether's come in four different flavors: Blackcurrant/Blackcurrant Sugar Free, Redcurrant Sugar Free, Elderflower Sugar Free, and Blueberry Sugar Free.