Coralcal D is a specialized nutritional supplement containing Calcium Carbonate (from Coral source) and Vitamin D3 (Cholecalciferol). It is primarily used to treat and prevent calcium and vitamin D deficiencies, particularly for bone health. Unlike traditional limestone-based calcium, Coralcal D is derived from fossilized coral, offering a chemical structure highly compatible with human bone for potentially superior absorption. Produced by Radiant Pharmaceuticals Ltd., here is the updated guide for 2026.
What is Coralcal D Used For?
Coralcal D (500 mg + 200 IU) is prescribed for the following conditions:
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Bone Health: Prevention and treatment of Osteoporosis and Osteomalacia.
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Mineral Deficiency: Management of Rickets, Tetany, and Hypoparathyroidism.
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Supplemental Care: Used during pregnancy, lactation, and childhood growth phases where calcium demand is high.
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Adjuvant Therapy: Sometimes used as a phosphate binder in patients with chronic renal failure.
Clinical Note: The “Coral source” calcium used in this formulation is often preferred because it naturally contains trace minerals like Magnesium, which can aid in bone mineralization. For a scientific look at its bioavailability, you can review Calcium and Vitamin D3 profiles on DrugBank.
Dosage
For adults and elderly patients, the standard dosage is one tablet once or twice daily.
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Administration: It is best taken with a full stomach (after meals) to enhance absorption and reduce the risk of stomach upset.
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Hydration: Always take the tablet with a full glass of water.
Common Side Effects
Coralcal D is typically well-tolerated, but some users may experience:
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Flatulence or bloating
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Constipation or diarrhea
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Stomach discomfort (Upper GI)
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Dry mouth
Professional Research Review: Hypercalcemia
Updated research in 2026 highlights that prolonged use of high-dose calcium can lead to Hypercalcemia (excessive calcium in the blood). Symptoms include nausea, thirst, and in severe cases, kidney stones. It is recommended to monitor serum calcium levels if taking this supplement for more than 6 months consecutively.
Important Warnings & Precautions
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Kidney Stones: Use with caution if you have a history of renal calculi (kidney stones).
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Drug Interactions: Avoid taking within 2-3 hours of antibiotics (like Tetracycline) as calcium can block their absorption.
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No Sudden Dosing: Do not exceed the recommended dose; excessive Vitamin D can lead to toxicity.
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Contraindications: Do not use if you have hypercalcemia, severe renal impairment, or hyperparathyroidism.
Coralcal D vs. Conventional Calcium: Key Differences and Usage
| Feature | Coralcal D (Coral Source) | Conventional Calcium (Limestone) |
| Source | Fossilized Coral Reefs | Mineral/Limestone |
| Absorption | Higher bioavailability due to ionized form | Requires high stomach acid for absorption |
| Trace Minerals | Naturally contains Magnesium & Zinc | Purely Calcium Carbonate |
| Digestive Impact | Generally gentler on the stomach | Can cause more gas/constipation |
| Unit Price | ৳13.00 | ৳5.00 – ৳8.00 |
Coralcal D Price in Bangladesh (February 2026 Update)
The following pricing reflects the current retail rates for Radiant Pharmaceuticals’ coral calcium line.
| Product Name | Strength | Unit Price (BDT) | Strip Price (10 Tablets) |
| Coralcal D | 500 mg + 200 IU | ৳13.00 | ৳130.00 |
| Coralcal DX | 600 mg + 400 IU | ৳17.00 | ৳170.00 |
| Coralcal Vita | Effervescent Tablet | ৳17.00 | ৳170.00 (10 tabs) |
Coralcal D Alternative Brands & Prices
Bangladesh has many high-quality coral-source alternatives. Below are the top 10 alternatives for 2026.
| Brand Name | Company Name | Price per Unit (BDT) |
| Calboral-D | Square Pharmaceuticals | ৳11.00 |
| Coralex | The ACME Laboratories | ৳11.00 |
| Marincal-D | Incepta Pharmaceuticals | ৳11.40 |
| Coralcin-D | Renata PLC | ৳11.50 |
| Cora-D | ACI Limited | ৳12.00 |
| Oceancal-D | General Pharmaceuticals | ৳11.00 |
| Kalcoral-D | Popular Pharmaceuticals | ৳11.00 |
| CoralTab | Ibn Sina Pharma | ৳10.00 |
| Coraltec D | Techno Drugs Ltd | ৳10.00 |
| Monocast D | Beximco Pharma | ৳12.00 |
Frequently Asked Questions (FAQ) About Coralcal D
1. What is the Coralcal D price in Bangladesh?
As of February 2026, the retail price for Coralcal D is ৳13.00 per tablet. A box of 60 tablets typically costs around ৳780.00.
2. What is Coralcal D used for?
It is used to treat calcium and vitamin D3 deficiencies, preventing bone loss (osteoporosis) and ensuring healthy bone development in adults and pregnant women.
3. What are the side effects of Coralcal D?
Most common side effects include constipation, flatulence, and nausea. Prolonged overdose may lead to kidney stones or high blood calcium levels.
4. Is Coralcal D safe during pregnancy?
Yes, it is frequently prescribed during pregnancy and lactation to support the mother’s bone density and the baby’s skeletal growth. However, only take it under a doctor’s guidance.
5. What is the recommended Coralcal D dose?
The usual dose is one tablet once or twice daily. For best results, take it after your largest meal of the day.
6. Why is coral calcium better than regular calcium?
Research suggests coral calcium is more easily absorbed by the body because its chemical structure is similar to human bone and it contains natural trace minerals.
7. Does it cause kidney stones?
Excessive calcium intake can contribute to kidney stones in predisposed individuals. If you have a history of stones, consult your doctor for a specific dosage.
8. Can I take it with my heart medication?
If you are taking Digoxin, you must consult your doctor first, as calcium can increase the risk of heart rhythm issues when taken with certain heart meds.
9. What are the best alternatives to Coralcal D?
Top alternatives in 2026 include Calboral-D (Square), Coralex (ACME), and Marincal-D (Incepta), all of which are priced between ৳10.00 and ৳12.00.
Disclaimer: This is educational information for February 2026. Not a substitute for professional medical advice. Always consult a qualified physician before starting any supplement.
