Os-Cal Extra D3, Calcium (500mg), Vitamin D3 ( 600 IU), 60 Coated

What the brand says

Sold as “Os-Cal Extra D3, Calcium (500mg), Vitamin D3 ( 600 IU), 60 Coated Caplets”

INDICATIONS: OsCal 500 + D 400 IU Tablets is the No. 1 doctor recommended brand and has been proven effective in more clinical studies. AND Os Cal 500+D has the added benefit of vitamin D, which helps the body absorb calcium.