|
Indications and Dosage
Oral
Supplementation of calcium and vitamin D3 Adult: As effervescent tablet containing calcium carbonate 1500 mg and vitamin D3 10 mcg: 1 tablet bid, to be dissolved in a glass of water and taken immediately. Dosing regimen may vary with brands and dosage forms.
|
|
Administration
Should be taken with food.
|
|
Contraindications
Patients with hypercalcaemia and/or hypercalciuria. Nephrolithiasis, hypervitaminosis D, hypophosphataemia.
|
|
Special Precautions
Impaired calcium absorption in achlorhydria which is common in elderly. Increased risk of hypercalcaemia and hypercalciuria in hypoparathyroid patients receiving high doses of vitamin D. Caution when using in patients with history of kidney stones. Renal impairment; frequent monitoring of serum calcium and phosphorus is recommended.
|
|
Adverse Reactions
Constipation, flatulence, nausea, abdominal pain and diarrhoea. Pruritus, rash and urticaria.
|
|
Overdosage
Overdose can lead to hypercalcaemia. Symptoms: Anorexia, thirst, nausea, vomiting, constipation, abdominal pain, muscle weakness, fatigue, bone pain, nephrocalcinosis, nephrolithiasis, mental disturbances, polydipsia, polyuria and cardiac arrhythmias (severe cases). Extreme hypercalcaemia may lead to coma and death. Irreversible renal damage and soft tissue calcification may occur as a result of prolonged hypercalcaemia. Treatment of hypercalcaemia: Rehydrate and discontinue calcium supplement and any treatment with thiazide diuretics, lithium, vitamin A or D and cardiac glycosides. Monitor serum electrolytes, renal function and diuresis.
|
|
Drug Interactions
May affect the absorption of tetracycline when used together. Concurrent use with systemic corticosteroids may reduce calcium absorption. Thiazide diuretics may decrease urinary excretion of calcium. Concurrent use with ion-exchange resins may reduce GI absorption of vitamin D. Hypercalcaemia may increase the toxicity of cardiac glycosides during treatment with calcium and vitamin D, monitor ECG and serum calcium levels. Bisphosphonate or sodium fluoride should be given at least 3 hr before calcium-containing preparations.
|
|
Food Interaction
Foods that are rich in oxalic acid (e.g. spinach and rhubarb) and phytic acid (e.g. whole cereals) may reduce calcium absorption by formation of insoluble calcium salts, thus calcium products should not be taken within 2 hr of eating such foods.
|
|
Action
Description: Calcium carbonate is a calcium supplement that is used in deficiency states and as an adjunct in the prevention and treatment of osteoporosis. Vitamin D3 is a fat-soluble sterol, it aids in the regulation of calcium and phosphate homeostasis and bone mineralisation.
Pharmacokinetics: Absorption: Calcium carbonate: About 15-25% gets absorbed in the GI tract. Converted to calcium chloride by gastric acid. Vitamin D: Well-absorbed in the GI tract in the presence of bile. Metabolism: Vitamin D: Undergoes hydroxylation in the liver and kidney to form the active metabolite, 1,25-dihydrocolecalciferol. Excretion: Vitamin D and metabolites are mainly excreted in the bile and faeces. |
|
Storage
Store below 25°C.
|
|
MIMS Class
|
Manage Account
Change Password
Sign Out
