Calsimet is used in the following conditions:

  • As a dietary supplement to provide the body with sufficient calcium
  • Used as an antacid to alleviate symptoms such as heartburn, acid indigestion, and upset stomach

This medicine may be recommended for different uses. Approach your physician or pharmacist for more information.

Do not use Calsimet in people with the following conditions:

  • Hypersensitivity
  • Those with kidney stones or on a calcium-restricted diet
  • Pre-existing conditions like kidney or heart disease

Calsimet may have the following side effects:

  • Upset stomach, vomiting, constipation, dry mouth, gas, and loss of appetite
  • In rare cases, an overdose of calcium carbonate can lead to symptoms such as nausea, loss of appetite, mental/mood changes, headache, weakness, and dizziness
  • Other potential adverse effects may include high levels of calcium, low levels of phosphate, and irritability
  • Pre-existing conditions like kidney or heart disease. Always follow the recommended dosage and instructions and be aware of potential side effects and drug interactions when using calcium carbonate

Keep in mind that your physician has recommended this drug since he or she has known that the advantage to you is more noteworthy than the risk of adverse reactions. Many individuals utilizing this medicine don’t have serious side effects.

A serious allergy to this medication is uncommon. In any case, seek emergency medical help if you see any manifestations of a serious allergic response, including a rash, tingling or swelling particularly of the face or tongue or throat, dizziness or difficulty in breathing.

This is not a complete list of side effects. If you see other effects not recorded above, contact your physician or pharmacist.


Take extra caution in patients with the following medical conditions:

Calcium carbonate should be used with caution and certain precautions should be taken. Here are some important points to keep in mind:

  • Allergies: If you are allergic to calcium or any other ingredients present in calcium carbonate products, you should avoid using them. Allergic reactions to calcium carbonate are rare but can be serious. It is recommended to consult your doctor or pharmacist before taking any medication if you have any allergies or health conditions
  • Kidney Stones: If you have a history of kidney stones, it is advisable to avoid calcium carbonate. High levels of calcium can contribute to the formation of kidney stones. It is best to discuss with your doctor before using calcium carbonate if you have a history of kidney stones
  • Calcium-Restricted Diet: If you are on a calcium-restricted diet, you should avoid using calcium carbonate supplements or medications. It is important to follow the dietary guidelines provided by your healthcare provider

Prior to taking this medicine, tell your physician or pharmacist if you are allergic to it, or if you have some other hypersensitivities. This drug may contain inert ingredients which can cause unfavorable side effects or different issues. Talk with your pharmacist for more information.


Calsimet may interact with the following medicines:

  • Antacids and other calcium supplements: Taking multiple calcium supplements or antacids that contain calcium carbonate together can lead to excessive calcium levels in the body, which may cause hypercalcemia.
  • Iron supplements: Calcium carbonate can interfere with the absorption of iron supplements when taken simultaneously. To avoid this interaction, it is advised to take iron supplements at least two hours before or four hours after taking calcium carbonate.
  • Certain antibiotics: Some antibiotics like tetracycline and quinolones can form insoluble complexes with calcium carbonate, reducing their absorption. It is recommended to take these antibiotics at least two hours before or six hours after taking calcium carbonate.
  • Thyroid medications: Calcium carbonate can interfere with the absorption of thyroid medications like levothyroxine. To avoid this interaction, it is best to take thyroid medications at least four hours before or after taking calcium carbonate.
  • Bisphosphonates: Calcium carbonate can reduce the absorption of bisphosphonates, which are commonly used for the treatment of osteoporosis. It is advisable to separate the administration of calcium carbonate and bisphosphonates by at least two hours.

This is not a complete list of drug interactions. Approach your physician or pharmacist for more details.

The effects of certain medications can change if you consume different medications or herbal products simultaneously. This can build your risk for side effects or may cause your drugs not to work effectively. These interactions are conceivable, yet don’t generally happen. Your physician or pharmacist can prevent or oversee interactions by changing how you utilize your prescriptions or by close checking.

While utilizing this drug, don’t start, stop, or change the dose of other medicines you are using without your physician’s advice.

If you suspect an overdose, contact your doctor right away.

Available Brands:

  • Calsimet

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