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Same active ingredient — pay up to 20% less
These brands contain the same active ingredient (Calcium Carbonate). Same strength and form. Confirm the switch with your doctor or pharmacist.
Indications & Uses
Calcizen DS is indicated for:
Pharmacology
Calcium carbonate reacts with stomach acid to form a salt and water. The reaction usually given for calcium carbonate is CaCO3 + 2HCl = CaCl2 + H2O + CO2. Two grams of calcium carbonate will readily bring 100 ml of hydrochloric acid up to a pH above 6. As the stomach becomes less acidic, the activity of pepsin in the gastric secretion goes down. Up to 30% of the oral calcium load may be absorbed.
Dosage Reference
Reference Information Only
Dosages shown are general references from official sources. Always consult your doctor or pharmacist for personalized dosing.
Adults:
250 mg or 500 mg tablet: Calcium Carbonate is always taken by mouth. When it is used as an antacid, the recommended dose for adults ranges from 540 mg to 2000 mg of Calcium Carbonate per day, with children given half the adult dose. As a dietary supplement, such as for preventing osteoporosis, the general recommendation is 1250 mg to 3750 mg of Calcium Carbonate (500 mg to 1500 mg of calcium) daily, though this should be tailored to the individual patient depending on any specific condition such as calcium deficiency, malabsorption, or parathyroid problems. During pregnancy and breastfeeding, the recommended daily dose of calcium is 1200 mg to 1500 mg. In chronic renal failure, doses of Calcium Carbonate used range from 2.5 gm to 9.0 gm per day and need to be adjusted for the individual patient. To get the most effective phosphate binding in this situation, Calcium Carbonate should be taken with meals.
1000 mg tablet: 2000 mg to 3000 mg when symptoms occur; this may be repeated hourly if needed, or as directed by the physician.
Side Effects
Orally administered Forbon may irritate the gastrointestinal tract and can lead to constipation. Calcium taken alone rarely causes hypercalcaemia, though this may occur when high doses are given to patients with chronic renal failure.
Cautions & Contraindications
Contraindications
Hypercalcaemia and hyperparathyroidism, hypercalciuria and nephrolithiasis, and Zollinger-Ellison syndrome are contraindications. Concomitant use with digoxin requires careful monitoring of serum calcium levels. When hypercalcaemia occurs, stopping the drug is usually enough to bring serum calcium concentrations back to normal. Calcium salts should be used cautiously in patients with sarcoidosis, renal or cardiac disease, and in those receiving cardiac glycosides.
Pregnancy & Breastfeeding
Calcium carbonate has been widely used during pregnancy, either as an oral calcium supplement or as an antacid. It can also be used by women who are breastfeeding.
⚠️ Talk to your doctor before taking any medicine during pregnancy or while breastfeeding.
Use in Special Populations
Use in children: Calcium Carbonate has been studied extensively in children and infants with chronic renal failure, and it is both safe and effective in them.
Use in elderly: Elderly patients with renal failure who take Calcium Carbonate may find constipation troublesome. For this reason, serum calcium and phosphate should of course be monitored in elderly patients.
Storage
Keep Calcium Carbonate in a cool, dry place at controlled room temperature.
Drug Interactions
Common questions about Calcizen DS 500 mg
What is Calcizen DS 500 mg Tablet?
Calcizen DS 500 mg Tablet is a medicine that contains Calcium Carbonate. It is made by Zenith Pharmaceuticals Ltd. It belongs to the Minerals in bone formation group of medicines.
What is Calcizen DS used for?
Calcizen DS is used for: Gastroesophageal Reflux Disease, Dyspepsia, Diarrhea, Calcium Deficiency.
What are the side effects of Calcizen DS?
Orally administered Forbon may irritate the gastrointestinal tract and can lead to constipation. Calcium taken alone rarely causes hypercalcaemia, though this may occur when high doses are given to patients with chronic renal failure.
Can I take Calcizen DS during pregnancy or while breastfeeding?
Calcium carbonate has been widely used during pregnancy, either as an oral calcium supplement or as an antacid. It can also be used by women who are breastfeeding. Talk to your doctor before taking any medicine during pregnancy or while breastfeeding.
How should I store Calcizen DS?
Keep Calcium Carbonate in a cool, dry place at controlled room temperature.
Can I take other medicines with Calcizen DS?
Some medicines can interact with Calcium Carbonate, for example: Digoxin, Coral Calcium + Vitamin D3, Acalabrutinib, Ravuconazole, Tetracycline Hydrochloride. Tell your doctor or pharmacist about every medicine you take.
Is there a cheaper medicine with the same ingredient?
Cenet by Central Pharmaceutical Ltd. has the same ingredient and strength for ৳1.60 per unit, compared with ৳2.00 for Calcizen DS. Ask your doctor or pharmacist before switching.
Do I need a prescription for Calcizen DS?
Calcizen DS is a prescription (Rx) medicine. Take it as your doctor advises.