Addiction Recovery
Allergy Relief
Antibiotics
Antidepressants
Antifungals
Antiparasitics
Antivirals
Autoimmune Support
Bladder Health
Bone Health
Cholesterol Management
COVID-19 Support
Diabetes Management
Digestive Health
Erectile Dysfunction
Eye Care
Heart & Blood Pressure
HIV Management
Hormone Therapy
Men's Health
Mental Health
Neurology
Oncology Support
Pain Management
Premature Ejaculation
Respiratory Health
Skin Care
Sleep Management
Thyroid Health
Weight Management
Women's Health
Calcium carbonate is the mineral supplement taken to top up dietary calcium and the antacid that settles heartburn, sold here as 500mg tablets and as the three-ingredient Calcibrook Forte.
Calcium Carbonate, Magnesium Hydroxide, Zinc Sulphate Monohydrate
1000/240/11mg
Calcibrook Forte is a calcium, magnesium and zinc tablet (1000/240/11mg) taken to top up dietary minerals for bone health, sold in packs of 30 to 120 tablets.
Calcium Carbonate
500mg
Calcium Carbonate 500mg tablets, a mineral supplement for calcium deficiency and an antacid for heartburn, acid indigestion and upset stomach, in packs of 60 or 90.
Look at the label on a calcium supplement and then on a pack of antacid tablets, and the main ingredient is often the same: calcium carbonate. Swallowed every day, it adds calcium, which bones are built from and which muscles, nerves and the heart depend on. Taken when heartburn strikes, it reacts with stomach acid and neutralises it, which eases acid indigestion and that sour, unsettled feeling.
Two listings carry calcium carbonate here. The 500mg Calcium Carbonate tablet is the plain one, with the mineral on its own at a strength that suits a dose two or three times a day. Calcibrook Forte, marked 1000/240/11mg, is a different tablet: it holds twice the calcium carbonate, together with 240mg of magnesium hydroxide and 11mg of zinc sulphate monohydrate. Magnesium hydroxide neutralises acid as well and draws fluid into the bowel, so stools can loosen, while zinc sulphate monohydrate is a zinc salt. Both are tablets to swallow and both sit in the bone support range.
Take them with a full glass of water. Calcium is absorbed better when it goes down with food, so take a dose with a meal or soon after one, and spread the day's total over two or three doses rather than swallowing it all at once. Heartburn use is for short spells — the directions cover about a fortnight — while a calcium top-up is an everyday, long-term habit. Other brands offer the mineral as chewable tablets, capsules and liquids; the two products on this page are ordinary tablets. Store the container closed, out of the sun and away from damp.
Calcium binds some medicines in the gut and lowers how much of them your body takes in. Leave an hour or two between a dose and a tetracycline or quinolone antibiotic, a bisphosphonate taken for bone density, thyroid tablets, or an iron supplement.
Wind, belching, constipation, a heavy stomach, a dry mouth and a metallic taste are the complaints people mention most; spacing the doses out and drinking plenty of water helps. The real concern is a very large intake kept up for weeks — blood calcium can climb too far and kidney stones become more likely. Urinating far more than usual, tiredness, nausea and losing your appetite are the signs of a calcium level that has gone too high.
You can order calcium carbonate online with delivery to Hong Kong. The page lists plain Calcium Carbonate tablets in 500mg and Calcibrook Forte, a combination tablet with magnesium hydroxide and zinc sulphate monohydrate. Every order ships in plain, unbranded packaging with nothing on the outside about the contents.
It depends on the product, strength and pack size. Each of the two calcium carbonate products listed here shows its current prices in HKD or the currency you select.
PockDose does not ask you to upload a prescription when you order calcium carbonate. See the ordering FAQ for details.
Calcium carbonate is sold under brand names including Adcal, Calcichew and Tums. Here, calcium carbonate can be bought online as calcium carbonate tablets. These are generics, not the original brand.
It can be, though most people take it with food or just after eating — that is gentler on the stomach and it is how calcium supplements are usually taken. For heartburn, a dose at the moment symptoms flare works fine.
Against heartburn the effect is quick — the tablet starts neutralising acid as soon as it reaches your stomach. As a calcium supplement there is nothing to feel: the benefit builds quietly over months of regular doses rather than from any single tablet.
Forte adds two ingredients the plain tablet does not have: magnesium hydroxide, which eases acid too and has a laxative effect in the bowel, and zinc sulphate monohydrate. It also carries more calcium per tablet — 1000mg against 500mg.
Yes, if calcium is what you are after — a steady daily intake is the point, and the benefit to bone builds over time. Heartburn is the opposite case: that use is short-term, with the directions covering roughly a fortnight rather than months of daily doses.
One extra tablet is unlikely to cause trouble, but far more than the pack suggests, taken for weeks on end, can push blood calcium up and make kidney stones more likely. Passing much more urine than usual, unexplained tiredness or feeling sick are the clues that calcium has built up.