Calcium is a mineral that is found naturally in foods. Calcium is necessary for many normal functions of your body, especially bone formation and maintenance. Calcium can also bind to other minerals (such as phosphate) and aid in their removal from the body.

Calcium citrate is used to prevent and to treat calcium deficiencies.

Calcium citrate may also be used for other purposes not listed in this medication guide.

Do not take calcium citrate or antacids that contain calcium without first asking your doctor if you also take other medicines. Calcium can make it harder for your body to absorb certain medicines.

Calcium citrate works best if you take it with food.

Before taking this medication, tell your doctor if you have:

• a history of kidney stones; or

• a parathyroid gland disorder.

If you have any of these conditions, you may not be able to take calcium citrate, or you may need a dose adjustment or special tests during treatment.

Talk to your doctor before taking calcium citrate if you are pregnant.

Talk to your doctor before taking calcium citrate if you are breast-feeding a baby.