Before gelatin and sugar coatings were invented in the 1800s, pills were sometimes gilded in gold or silver to conceal unpleasant tastes or aromas.
Photograph by Rob Lavinsky, iRocks.com/Wikimedia Commons/CC-BY-SA-3.0.
Before gelatin and sugar coatings were invented in the 1800s, pills were sometimes gilded in gold or silver to conceal unpleasant tastes or aromas.