Os-Cal Calcium Supplement

Os-Cal is a well-known brand of calcium supplements designed to support bone health. Originally developed by Marion Laboratories in the United States, the brand has undergone several ownership changes over the decades as the pharmaceutical industry consolidated.

Today, the brand is owned by Sanofi, a French multinational pharmaceutical company. In the Brazilian market, Sanofi operates through its local subsidiary and often manufactures these supplements within Brazil to meet local demand. The product shown is a 500mg calcium tablet aimed at bone maintenance and is categorized as a dietary supplement. Sanofi remains the ultimate owner as of 2024 and beyond.