Calcium carbonate

Calcium is a mineral that occurs naturally in foods. It is essential for many normal body functions, especially for building and keeping bones healthy.

Calcium carbonate is used to stop or treat a lack of calcium.

There are many brands and types of calcium carbonate available. Not all brands are included in this leaflet.

Calcium carbonate 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.

Check the label of your calcium carbonate product to see if it should be taken with or without food.

Swallow the calcium carbonate regular tablet with a full glass of water.

The chewable tablet should be chewed before you swallow it.

Shake the oral suspension (liquid) well just before you measure a dose. Measure liquid medicine with the dosing syringe provided, or with a special dose-measuring spoon or medicine cup. If you do not have a dose-measuring device, ask your pharmacist for one.

Use the calcium carbonate powder as directed. Allow the powder to dissolve completely, then consume the mixture.

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

Your calcium carbonate 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. Do not freeze.

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

Ask a doctor or pharmacist if it is safe for you to take calcium carbonate 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 carbonate if you are pregnant or breast-feeding. Your dose 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 carbonate may cause serious side effects. Call your doctor immediately if you have:

• little or no urinating;
• 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 carbonate may include:

• upset stomach, gas; 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 carbonate.

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

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