Calcium is necessary to maintain the normal function of human nerve, muscle, skeletal system, cell membrane and capillary permeability. Vitamin D can participate in the metabolism of calcium and phosphorus, promote their absorption and play an important role in bone formation.
As a global member of Pfizer, Pfizer Health Medicine Division is one of the top OTC companies in the world. Headquartered in New Jersey, USA, its business covers 65 countries around the world, and its products are sold to 140 countries and regions. Its brand covers many fields, such as pain relief, vitamin and mineral supplements and prevention of colds and coughs:
Advil, Centrum, Caltrate and Robitussin, among which Advil and Centrum are the top ten OTC brands in the world. There are three brands in Pfizer's China Health Medicine Division: Calci, Shancun and Huifeining.
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