Natecal D3 600mg Chewable Tablets This medicine is a calcium & vitamin D supplement & helps correct low levels of calcium & vitamin D in the body. It is used in situations including poor dietary intake, when the body requires higher than normal levels as during pregnancy or to correct deficiencies in the elderly. It is also used in managing certain conditions such as osteoporosis. This medicine is available as tablets that have to be chewed or sucked slowly. They should not be swallowed whole. It is best to take this medicine after meals. You should not take this medicine to treat a condition that has not been diagnosed by a healthcare professional. This medicine contains sugar & can be harmful to the teeth if taken for a long period of time. Consult your doctor if your symptoms do not improve or if they get worse during treatment with this medicine.