Indications
Calcium lactate gluconate is a calcium salt that dissolves easily in water. It is often combined with Calcium carbonate in effervescent (fizzy) tablets. It is used to prevent and treat calcium deficiency, to support bone health in osteoporosis, osteomalacia and rickets (usually with vitamin D), and when calcium needs are higher, such as during pregnancy, breastfeeding, growth and older age.
How It Works
It supplies calcium, which the body needs for strong bones and teeth and for the normal working of nerves, muscles, the heart and blood clotting.
Dosage and Administration
Adults: usually 1 effervescent tablet a day (about 500 to 1000 mg of calcium), or as directed by the doctor or the product label. Dissolve the tablet completely in a glass of water and drink it straight away. Do not swallow effervescent tablets whole. Children: only as prescribed.
Interactions
Calcium can reduce the absorption of Tetracycline and Doxycycline, Ciprofloxacin and other quinolone antibiotics, Levothyroxine, Alendronate and other bisphosphonates, and Iron. Take these at least 2 hours before or 4 hours after calcium, or as their leaflets advise. Thiazide diuretics such as Hydrochlorothiazide can raise blood calcium, and high calcium increases the risk of side effects from Digoxin. Foods rich in oxalic acid (such as spinach) or phytic acid (such as bran) can reduce calcium absorption if eaten at the same time.
Contraindications
- High blood calcium (hypercalcaemia) or high urine calcium.
- Calcium kidney stones.
- Severe kidney disease.
- Allergy to any ingredient of the product.
Side Effects
Constipation, bloating, wind, nausea or mild stomach upset may occur. Get urgent medical help if you notice signs of an allergic reaction (rash, swelling of the face or throat, difficulty breathing) or signs of high blood calcium, such as severe thirst, passing a lot of urine, vomiting, confusion, muscle weakness or an irregular heartbeat.
Pregnancy and Lactation
Calcium supplements are commonly used during pregnancy and breastfeeding at recommended doses. Take only the dose your doctor advises, especially if you also take other calcium or vitamin D products.
Precautions and Warnings
Tell your doctor if you have kidney problems, a history of kidney stones, sarcoidosis or heart disease. Effervescent tablets may contain sodium and sweeteners, which matters for people on a low-salt diet or with phenylketonuria; check the label. Do not combine several calcium or vitamin D products without advice.
Overdose
Too much calcium can cause high blood calcium, with nausea, vomiting, thirst, constipation, confusion and an irregular heartbeat. Stop taking it and seek medical help.
Therapeutic Class
Calcium preparation (mineral supplement).
Storage
Store below 30°C in a dry place, away from light and out of the reach of children. Keep the tube tightly closed after each use, as moisture spoils effervescent tablets.
Prepared by the Oshud Alo team from standard drug references. For information only; always follow your doctor's advice.