An excipient is an inactive substance that acts as a vehicle for the active drug. Sugar often serves as an excipient, adding bulk, consistency, and masking unpleasant tastes. Sugar coatings on tablets protect from air and moisture while improving flavor and identification. Pharma grade invert sugar syrup is primarily used to counteract unpleasant drug tastes and can add viscosity or bulk. It provides quick energy and extends shelf life. Pharma grade sugars undergo rigorous testing to standards set by the European Pharmacopoeia to ensure only the highest quality products.