calcium phosphate, tribasic (tricalcium phosphate)

Skip to the navigation

Pronunciation: KAL see um FOSS fate, tri BAY sick

Brand: Posture

What is the most important information I should know about calcium phosphate?

Do not take calcium phosphate 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 phosphate works best if you take it with food.

What is calcium phosphate?

Calcium is a mineral that is found naturally in foods. Calcium is necessary for many normal functions of the 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 phosphate is used to prevent and to treat calcium deficiencies.

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

What should I discuss with my healthcare provider before taking calcium phosphate?

To make sure you can safely take calcium phosphate, tell your doctor if you have any of these other conditions:

  • a history of kidney stones; or
  • a parathyroid gland disorder.

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

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

How should I take calcium phosphate?

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.

Calcium phosphate works best if you take it with food.

Take calcium phosphate with a full glass of water.

Store at room temperature away from moisture and heat.

What happens if I miss a dose?

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

What happens if I overdose?

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

Overdose symptoms may include nausea, vomiting, decreased appetite, constipation, confusion, delirium, stupor, and coma.

What should I avoid while taking calcium phosphate?

Follow your healthcare provider's instructions about any restrictions on food, beverages, or activity.

What are the possible side effects of calcium phosphate?

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

Less serious side effects may include:

  • nausea or vomiting;
  • decreased appetite;
  • constipation;
  • dry mouth or increased thirst; or
  • increased urination.

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.

What other drugs will affect calcium phosphate?

Calcium phosphate can make it harder for your body to absorb other medications you take by mouth. Tell your doctor if you are taking:

  • digoxin (Lanoxin, Lanoxicaps);
  • antacids or other calcium supplements;
  • calcitriol (Rocaltrol) or vitamin D supplements; or
  • doxycycline (Adoxa, Doryx, Oracea, Vibramycin), minocycline (Dynacin, Minocin, Solodyn, Vectrin), or tetracycline (Brodspec, Panmycin, Sumycin, Tetracap).

This list is not complete and other drugs may interact with calcium phosphate. Tell your doctor about all medications you use. This includes prescription, over-the-counter, vitamin, and herbal products. Do not start a new medication without telling your doctor.

Where can I get more information?

Your doctor or pharmacist can provide more information about calcium phosphate.

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

Every effort has been made to ensure that the information provided by Cerner Multum, Inc. ('Multum') is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Multum information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Multum does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Multum's drug information does not endorse drugs, diagnose patients or recommend therapy. Multum's drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. Multum does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.

Copyright 1996-2017 Cerner Multum, Inc. Version: 4.02. Revision date: 12/15/2010.

Your use of the content provided in this service indicates that you have read, understood and agree to the End-User License Agreement, which can be accessed by clicking on this link.