Preservative

Products Preservatives can be found in liquid, semi-solid and solid pharmaceuticals. They are also used for food and cosmetics. Structure and properties Preservatives belong to various chemical groups. These include, for example: Acids and their salts Benzoic acid derivatives, 4-hydroxybenzoic acid derivatives. Quaternary ammonium compounds Alcohols Phenols Preservatives can be of natural and synthetic origin. … Preservative

Calcium Health Effects

Products Calcium is commercially available in numerous drug products as a monopreparation, a fixed combination with vitamin D (usually cholecalciferol), and other vitamins and minerals. The most commonly used dosage forms include chewable, lozenge, meltable and effervescent tablets. Film-coated tablets that can be swallowed whole have also been available for some time. Structure and properties … Calcium Health Effects