Calcium 600 Plus Vitamin D-3

Calcium 600 Plus Vitamin D-3 and 3 near-identical products are sold under 3 different brand names — a near-twin Formula Twins cluster.

Product	Brand
Calcium 600 Plus Vitamin D-3	Rite Aid Pharmacy
Chewable Calcium 250 mg	Kirkman
Children's Chewable Calcium with Vitamin D-3 Natural Chocolate Flavor	Kirkman
Calcium Carbonate 600 mg with D3 Tablets	AvPak