Calciduran Vit. D3 500 mg/800 I.E. film-coated tablets

Calciduran Vit. D3 is a pharmaceutical-grade supplement used primarily for the prevention and treatment of vitamin D and calcium deficiency, as well as an adjunct to specific osteoporosis treatments. The brand has historical roots in Germany, specifically associated with Madaus, which was later integrated into larger pharmaceutical conglomerates.

Today, the brand is owned by Viatris Inc., a global healthcare company formed through the massive merger of Mylan and Pfizer’s Upjohn division. While the brand is managed globally from the United States, its manufacturing base for the European market remains heavily concentrated in German pharmaceutical production facilities, ensuring high standards of quality and regulatory compliance. Viatris operates as a key player in providing both branded and generic medicines worldwide.