Calcium carbonate

Calcium carbonate

Calcium carbonate is a medicine to treat symptoms of excess stomach acid, such as heartburn or heartburn. In addition, this drug can also be used in the treatment of high levels of phosphate in kidney failure and to prevent and treat calcium deficiency.

Calcium carbonate is also included in the antacid class. As an antacid, this drug works by lowering the level of stomach acidity. Even though it is sold freely, you should first consult with your doctor before taking this drug.

Trademarks of calcium carbonate:  Calos, Calporosis D 500, CDR , Day-Cal, Erphabone, Ulcer Gel, Tivera-V, Wellness Os-Cal

What is Calcium Carbonate

class Free medicine
Category Mineral supplements or antacids 
Benefit Overcome calcium deficiency or excess stomach acid
Consumed by Adults and children
Calcium carbonate for pregnant and lactating women


Category C : Animal studies have demonstrated an adverse effect on the fetus, but there have been no controlled studies in pregnant women.

Drugs should only be used if the expected benefit outweighs the risk to the fetus.

Calcium carbonate can be absorbed into breast milk. If you are breastfeeding, do not use this medicine without consulting your doctor first.

Drug form Tablets, caplets, chewable tablets, effervescent tablets , suspensions

Precautions Before Consuming Calcium Carbonate

Before taking this drug, you need to pay attention to the following things:

  • Do not use calcium carbonate if you are allergic to this drug. Tell your doctor about any history of allergies you have.
  • Consult your doctor about using calcium carbonate if you have or are currently suffering from kidney stones , kidney disease, cancer, high calcium levels in the blood (hypercalcemia), or parathyroid gland disorders .
  • Consult the use of calcium carbonate if you have  phenylketonuria or another condition requiring you to limit your intake of aspartame or phenylalanine, as some calcium carbonate products may contain aspartame ( an artificial sweetener ).
  • Consult your doctor before using calcium carbonate if you are currently taking medications, supplements, or herbal products.
  • Consult your doctor before taking calcium carbonate if you are pregnant, nursing or planning a pregnancy.
  • See a doctor immediately if you have an allergic reaction to a drug or an overdose after taking calcium carbonate.

Dosage and Rules for Use of Calcium Carbonate

The following is a general dosage of calcium carbonate based on the condition and age of the patient:

Condition:  Excess stomach acid

  • Adult: 0.5–3 g, when symptoms appear. The maximum dose is 8 grams per day with a treatment duration of up to 2 weeks.
  • Children 2–5 years: 0.375–0.4 g at the time of symptoms. The maximum dose is 1.5 grams per day with a treatment duration of up to 2 weeks.
  • Children 6–11 years: 0.75–0.8 g at the time of symptoms. The maximum dose is 3 grams per day with a treatment duration of up to 2 weeks.
  • Children ≥12 years: 0.5–3 g at the time of symptoms. The maximum dose is 7.5 grams per day with a treatment duration of up to 2 weeks.

Condition:  Calcium deficiency (hypocalcemia)

  • Adults: 0.5–4 g per day, divided into 1–3 doses.
  • Children aged 2–4 years: 0.75 grams, 2 times a day.
  • Children aged ≥4 years: 0.75 grams, 3 times a day.

Condition: Excess phosphorus ( hyperphosphatemia ) in patients with chronic renal failure

  • Adults: 3–7 grams per day in divided doses.

How to Take Calcium Carbonate Properly

Follow the doctor 's recommendations and read the information printed on the drug packaging before taking calcium carbonate. Do not reduce or increase your dose without consulting your doctor first.

If you are taking calcium carbonate chewable tablets, they must be chewed first and not swallowed whole.

If you are taking calcium carbonate in suspension, shake the bottle before use. Use the measuring spoon that is available in the medicine package so that the dosage is more precise.

If you forget to take calcium carbonate, it is recommended to consume it immediately if the gap with the next consumption schedule is not too close. If it's close, ignore it and don't double the dose.

If you are taking other medications, pause at least 2 hours before or after taking calcium carbonate.

During treatment with calcium carbonate, especially long-term treatment, your doctor may order you to have regular blood tests or urine tests to monitor your kidney function.

Store calcium carbonate at room temperature and in a closed container so that it is not exposed to direct sunlight. Keep this drug out of reach of children.

Interactions of Calcium Carbonate with Other Drugs

The following are some interactions between drugs that can occur when calcium carbonate is used together with other drugs:

  • Increased risk of developing hypercalcemia when used with thiazide diuretics
  • Decreased absorption of thyroxine, bisphosphonates, sodium fluoride, iron , or quinolone and tetracycline -type antibiotics
  • Increased effectiveness of the drug digoxin
  • Decreased absorption of calcium carbonate in the body when used with corticosteroid class drugs

Side Effects and Dangers of Calcium Carbonate

Some of the side effects that can occur after consuming calcium carbonate are:

  • Bloated
  • Constipation
  • Burp
  • Dry mouth
  • Headache
  • Nausea or vomiting
  • Bone or muscle pain
  • Confusion or mood swings
  • Unusual fatigue
  • Unusual weight loss

Consult your doctor if the side effects above do not subside or get worse. You should also see a doctor immediately if you experience a drug allergic reaction after taking calcium carbonate.

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