Calcium citrate

Calcium is a mineral that occurs naturally in foods. Calcium is essential for many normal body functions, particularly for building and maintaining bones.

Calcium citrate is used to prevent and treat calcium deficiencies.

Calcium citrate may also be used for reasons not mentioned in this medication guide.

Use exactly as directed on the label, or as prescribed by your doctor. Do not use in larger or smaller amounts or for longer than recommended.

You may take calcium citrate with or without food.

Swallow the tablet with a full glass of water.

Calcium citrate may be only part of a complete program of treatment that also includes dietary changes. Learn about the foods that contain calcium.

Your calcium citrate dose may need to be adjusted as you make changes to your diet. Follow your doctor's instructions very closely.

Store at room temperature away from moisture and heat.

Follow all instructions on your medicine label and package. Inform each of your healthcare providers about all your medical conditions, allergies, and all medicines you are taking.

Ask a doctor or pharmacist if it is safe for you to take calcium citrate if you have ever had:

• kidney disease;
• kidney stones;
• cancer;
• a parathyroid gland disorder; or
• high levels of calcium in your blood.

Ask a doctor before using calcium citrate if you are pregnant or breast-feeding. Your dosage may need to be different during pregnancy or while you are nursing.

Get emergency medical help if you have signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Calcium citrate may cause serious side effects. Call your doctor right away if you have:

• little or no urination;
• swelling, rapid weight gain; or
• high levels of calcium in your blood--nausea, vomiting, constipation, increased thirst or urination, muscle weakness, bone pain, confusion, lack of energy, or feeling tired.

Common side effects of calcium citrate may include:

• upset stomach; or
• constipation.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Take the missed dose as soon as you remember. If it is almost time for your next scheduled dose, skip the missed dose. Do not take extra medicine to make up for the missed dose.

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Ask a doctor or pharmacist before taking any multivitamins, mineral supplements, or antacids while you are taking calcium citrate.

Calcium citrate can make it more difficult for your body to absorb some medicines. If you are taking other medications, take them at least 2 hours before or 4 to 6 hours after taking calcium citrate.

Other drugs may interact with calcium citrate, including prescription and over-the-counter medicines, vitamins, and herbal products. Inform your doctor about all your current medications and any medicine you begin or stop using.