Brand Name Paracal
Type Tablet
Weight 500 mg
Generic Calcium Carbonate
Manufacturer Pristine Pharmaceuticals Ltd
Price (Bangladesh) Unit Price: ৳ 4.00 (5 x 10: ৳ 200.00) Strip Price: ৳ 40.00
Available in

About Paracal Tablet 500 mg

Paracal Tablet 500 mg is a brand medicine manufactured by Pristine Pharmaceuticals Ltd containing the generic Calcium Carbonate (500 mg). Current listed price in Bangladesh: Unit Price: ৳ 4.00 (5 x 10: ৳ 200.00) Strip Price: ৳ 40.00.

Medical information for Paracal Tablet 500 mg

Uses, dosage, side effects, and safety details below apply to Paracal Tablet 500 mg (generic: Calcium Carbonate). This is general information — consult a doctor before use.

Introduction

Calcium carbonate is an inorganic salt used as an antacid. It is a basic compound that acts by neutralizing hydrochloric acid in gastric secretions. Subsequent increases in pH may inhibit the action of pepsin. An increase in bicarbonate ions and prostaglandins may also confer cytoprotective effects. Calcium carbonate may also be used as a nutritional supplement or to treat hypocalcemia.

Uses

Calcium carbonate is an ionic compound used as a calcium supplement or antacid used for the symptomatic relief of heartburn, acid indigestion, and sour stomach.

For relief of heartburn and acid indigestion. May also be used as a nutritional supplement or to treat hypocalcemia.

Associated Conditions

  • Acid Reflux
  • Acid indigestion
  • Bloating
  • Calcium Deficiency
  • Calcium Metabolism Disorders
  • Calcium and Vitamin D Deficiencies
  • Colic
  • Dyspepsia
  • Gastric Ulcer
  • Gastroesophageal Reflux
  • Heartburn
  • Hemorrhoids
  • Hot Flushes
  • Hyperacidity
  • Hyperphosphataemia
  • Hypovitaminosis D
  • Low Bone Density
  • Osteodystrophy
  • Osteomalacia
  • Osteoporosis
  • Postmenopausal Osteoporosis
  • Postoperative Gas
  • Proctitis
  • Vertebral Fractures
  • Calcium loss
  • Gastrointestinal ulceration
  • Dietary supplementation

Pharmacodynamics

Gastric-peptic disease occurs as a result of an imbalance between protective factors, such as mucus, bicarbonate, and prostaglandin secretion, and aggressive factors, such as hydrochloric acid, pepsin, and Helicobacter pylori (H. pylori). Antacids work by restoring acid-base balance, attenuating the pepsin activity and increasing bicarbonate and prostaglandin secretion. The acid-neutralizing capacity of calcium carbonate is 58 mEq/15 ml. When used as a nutritional supplement, calcium carbonate acts by directly increasing calcium stores within the body.

Mechanism of Action

Calcium carbonate is a basic inorganic salt that acts by neutralizing hydrochloric acid in gastric secretions. It also inhibits the action of pepsin by increasing the pH and via adsorption. Cytoprotective effects may occur through increases in bicarbonate ion (HCO3-) and prostaglandins. Neutralization of hydrochloric acid results in the formation of calcium chloride, carbon dioxide and water. Approximately 90% of calcium chloride is converted to insoluble calcium salts (e.g. calcium carbonate and calcium phosphate).

Absorption

Maximal absorption occurs at doses of 500 mg or less taken with food. Oral bioavailability depends on intestinal pH, the presence of food and dosage.

Volume of Distribution

Calcium is rapidly distributed taken up by skeletal tissues following absorption and distribution into extracellular fluids. Bone contains 99% of the body's calcium and the remaining 1% is approximately equally distributed between intracellular and extracellular fluids.

Protein Binding

Calcium acts as a co-factor to numerous enzymes.

Route of Elimination

Excreted mainly in the feces. The majority of renally filtered calcium is reabsorbed in the ascending limb of the loop of Henle and the proximal and distal convoluted tubules. Also secreted by sweat glands.

Food Interactions

  • Take with or without food. Food increases the absorption of calcium carbonate, which may be advantageous in its use as a calcium supplement.

Frequently Asked Questions About Paracal Tablet 500 mg

1. What is Paracal Tablet 500 mg?

Paracal Tablet 500 mg is a dietary supplement and antacid used to treat calcium deficiency and acid-related conditions.

2. What are the uses of Paracal Tablet 500 mg?

It is used for:

  • Calcium supplementation
  • Preventing and treating osteoporosis
  • Relieving acid indigestion and heartburn
  • Managing hypocalcemia (low calcium levels)

3. How does Paracal Tablet 500 mg work?

It provides calcium for bone health and neutralizes stomach acid when used as an antacid.

4. What is the recommended dosage for Paracal Tablet 500 mg?

The dosage depends on the condition, but typically:

  • For calcium supplementation: 500–1,500 mg per day
  • For acid reflux: 750–2,000 mg per dose

5. Can I take Paracal Tablet 500 mg with food?

Yes, it is best absorbed when taken with food.

6. What are the common side effects of Paracal Tablet 500 mg?

Common side effects include:

  • Constipation
  • Bloating
  • Gas
  • Nausea

7. Can I take Paracal Tablet 500 mg if I have kidney disease?

Patients with kidney disease should consult a doctor before use, as excess calcium may cause kidney stones.

8. Does Paracal Tablet 500 mg interact with other medications?

Yes, it can interact with:

  • Iron supplements
  • Thyroid medications
  • Certain antibiotics (e.g., tetracyclines, fluoroquinolones)
  • Bisphosphonates (used for osteoporosis)

9. Can Paracal Tablet 500 mg be taken during pregnancy?

Yes, it is generally safe during pregnancy but should be taken as per a doctor's recommendation.

10. Is Paracal Tablet 500 mg safe for children?

Yes, but the dosage should be determined by a pediatrician.

11. Can I take Paracal Tablet 500 mg with milk?

Yes, but excessive calcium intake from supplements and dairy may lead to hypercalcemia.

12. Can Paracal Tablet 500 mg help with osteoporosis?

Yes, it helps maintain bone density and reduces the risk of osteoporosis.

13. How long does it take for Paracal Tablet 500 mg to work?

As an antacid, it works within minutes. For calcium supplementation, benefits develop over weeks to months.

14. Can I take Paracal Tablet 500 mg every day?

Yes, but do not exceed the recommended dose to avoid excess calcium buildup.

15. What happens if I take too much Paracal Tablet 500 mg?

Overdose symptoms include:

  • Hypercalcemia (high calcium levels)
  • Kidney stones
  • Nausea and vomiting
  • Confusion

16. Can Paracal Tablet 500 mg cause kidney stones?

Excessive intake may increase the risk of kidney stones.

17. Is Paracal Tablet 500 mg the same as calcium citrate?

No, calcium citrate is absorbed better without food, while calcium carbonate requires food for optimal absorption.

18. Can I take Paracal Tablet 500 mg if I have acid reflux?

Yes, it works as an antacid to relieve heartburn and acid reflux.

19. Does Paracal Tablet 500 mg help with muscle cramps?

Yes, calcium deficiency can cause muscle cramps, so supplementation may help.

20. Can I take Paracal Tablet 500 mg and Vitamin D together?

Yes, Vitamin D helps improve calcium absorption.

21. Can Paracal Tablet 500 mg cause diarrhea?

It usually causes constipation rather than diarrhea.

22. Is Paracal Tablet 500 mg vegan?

It depends on the source. Some formulations come from animal sources (e.g., oyster shells), while others are synthetic.

23. Can I crush Paracal Tablet 500 mg tablets?

Yes, unless they are extended-release tablets.

24. Does Paracal Tablet 500 mg expire?

Yes, always check the expiration date before use.

25. Can I take Paracal Tablet 500 mg before surgery?

Inform your doctor before taking any supplement before surgery.

26. Can Paracal Tablet 500 mg be taken at night?

Yes, but for better absorption, take it with a meal.

27. Does Paracal Tablet 500 mg affect blood pressure?

It may help regulate blood pressure but should be used under medical supervision.

28. Can Paracal Tablet 500 mg prevent osteoporosis?

Yes, it helps maintain strong bones and prevent osteoporosis.

29. Can Paracal Tablet 500 mg cause weight gain?

No, it does not cause weight gain.

30. Is Paracal Tablet 500 mg used in food?

Yes, it is used as a food additive and preservative.

31. Can Paracal Tablet 500 mg improve dental health?

Yes, it supports strong teeth and helps prevent enamel erosion.

32. Can Paracal Tablet 500 mg cause drowsiness?

No, it does not cause drowsiness.

33. Can I take Paracal Tablet 500 mg with caffeine?

Caffeine may reduce calcium absorption, so limit intake.

34. Does Paracal Tablet 500 mg improve nail health?

Yes, calcium deficiency can lead to brittle nails.

35. Can Paracal Tablet 500 mg be taken with aspirin?

Consult a doctor, as calcium may interfere with aspirin absorption.

36. Does Paracal Tablet 500 mg support heart health?

It may support heart function, but excessive intake can cause issues.

37. Can I take Paracal Tablet 500 mg if I have lactose intolerance?

Yes, it can provide calcium without consuming dairy.

38. Does Paracal Tablet 500 mg help with acid indigestion?

Yes, it neutralizes stomach acid and relieves indigestion.

39. Can Paracal Tablet 500 mg be used for leg cramps?

It may help if the cramps are due to calcium deficiency.

40. Is Paracal Tablet 500 mg good for hair growth?

It supports overall health, but there is limited evidence linking it directly to hair growth.

41. Can I take Paracal Tablet 500 mg if I have anemia?

Yes, but avoid taking it with iron supplements, as it may reduce iron absorption.

42. Does Paracal Tablet 500 mg help with nerve function?

Yes, calcium is essential for nerve signal transmission.

43. Can I take Paracal Tablet 500 mg with warfarin?

Consult your doctor, as calcium may interact with blood thinners.

44. Can I use Paracal Tablet 500 mg for bone fractures?

Yes, it helps in bone healing.

45. Can Paracal Tablet 500 mg be used for gastric ulcers?

It may provide temporary relief but is not a primary treatment.

46. Does Paracal Tablet 500 mg improve immune function?

It supports general health but is not directly linked to immunity.

47. Can I take Paracal Tablet 500 mg with magnesium?

Yes, they are often combined for better absorption.

48. Does Paracal Tablet 500 mg expire?

Yes, always check the expiration date before use.

49. Can Paracal Tablet 500 mg be taken with protein shakes?

Yes, but calcium absorption may be affected by high protein intake.

50. Can I take Paracal Tablet 500 mg with zinc?

Yes, but take them at different times for better absorption.

Medical review

Last reviewed: 24 Jul 2026

Medically reviewed by:

This is general information, not personal medical advice. Consult a doctor before taking any medicine.

Taking medicines without doctor's advice can cause long-term problems.
Dr. Muhammad Firoz Hasan

Dr. Muhammad Firoz Hasan

Physical Medicine & Rehabilitation Specialist

Call Doctor
Dr. Hasibul Hasan Emon

Dr. Hasibul Hasan Emon

Oral, Dental & Maxillofacial Surgery Specialist

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