Calcimax Forte
Calcimax Forte is a tablet made by Meyer Organics that contains Calcium carbonate 1000 mg + Vitamin D3 500 IU + Magnesium 240 mg (as hydroxide) + Zinc 11 mg. It combines Calcium carbonate: calcium supplement, Vitamin D3: vitamin, Magnesium: mineral and Zinc: mineral.
| Ingredient (salt) | Amount |
|---|---|
| Calcium carbonate | 1000 mg |
| Vitamin D3 (cholecalciferol) | 500 IU |
| Magnesium | 240 mg (as hydroxide) |
| Zinc | 11 mg |
Calcium carbonate
What it is used for
Provides calcium for bones and teeth; also acts as an antacid.
How it works
The most common calcium supplement (40 percent calcium), also an antacid. Supports bones and teeth with vitamin D.
How to take it
Take with meals for best absorption; no more than 500 to 600 mg of calcium at a time. Count calcium from milk, curd and paneer too.
Common side effects
- Constipation
- Wind
- Bloating
Get medical help straight away if
- Kidney stone pain
- Confusion, thirst or vomiting (too much calcium)
Be careful
Can cause constipation; keep 2 to 4 hours apart from thyroid tablets and iron.
Other medicines and interactions
Reduces absorption of iron, levothyroxine, ciprofloxacin and other quinolones, tetracyclines and bisphosphonates; separate by 2 to 4 hours.
Pregnancy and breastfeeding
Calcium needs rise in pregnancy and breastfeeding; supplements are commonly prescribed.
Vitamin D3 (cholecalciferol)
What it is used for
Helps the body absorb calcium and keeps bones and muscles healthy; treats vitamin D deficiency.
How it works
Cholecalciferol, the form of vitamin D made in skin from sunlight. It helps absorb calcium for bones and muscles. Deficiency is very common in India despite the sun.
How to take it
Daily doses (600 to 2,000 IU) or weekly 60,000 IU for a few weeks to correct deficiency, then monthly as advised; take with the fattiest meal. Do not continue 60,000 IU weekly for long without a blood test.
Common side effects
Usually none at normal doses
Get medical help straight away if
Thirst, passing lots of urine, nausea, confusion or kidney stones (too much vitamin D raises calcium)
Be careful
High weekly doses are for deficiency only; too much over time can be harmful.
Other medicines and interactions
Thiazide diuretics with high doses raise calcium. Orlistat, liquid paraffin and some anti-epileptics reduce vitamin D.
Pregnancy and breastfeeding
Recommended in pregnancy and breastfeeding at normal doses; high-dose regimens only on medical advice.
Magnesium
What it is used for
Supports muscles, nerves and bones; used for low magnesium and sometimes cramps.
How it works
A mineral for muscles, nerves and heart rhythm; supplements are used for cramps, constipation, migraine prevention and low levels.
How to take it
Usually 200 to 400 mg a day with food; citrate and glycinate are absorbed better than oxide.
Common side effects
- Diarrhoea
- Stomach upset
Get medical help straight away if
Weakness, slow heartbeat or drowsiness (too much, especially with kidney disease)
Be careful
Can cause loose motions; caution with kidney disease.
Other medicines and interactions
Reduces absorption of quinolone and tetracycline antibiotics, bisphosphonates and levothyroxine; separate by 2 to 4 hours.
Pregnancy and breastfeeding
Usual doses are considered acceptable in pregnancy and breastfeeding.
Zinc
What it is used for
Supports immunity, wound healing and growth; given with ORS in children's diarrhoea.
How it works
A mineral needed for immunity, skin healing and growth; with ORS it shortens diarrhoea in children.
How to take it
Children with diarrhoea: 10 to 20 mg a day for 10 to 14 days. Adults usually 10 to 25 mg a day with food.
Common side effects
- Nausea
- Metallic taste
- Stomach upset
Get medical help straight away if
Numbness or anaemia from long high-dose use (copper deficiency)
Be careful
Can cause nausea on an empty stomach.
Other medicines and interactions
Reduces absorption of quinolone and tetracycline antibiotics; separate by 2 to 4 hours. Iron and zinc compete with each other.
Pregnancy and breastfeeding
Normal doses are fine in pregnancy and breastfeeding.
Most vitamin and herbal supplements in India are regulated as foods (FSSAI) and are not tested the way medicines are. More is not always better: check the dose on the pack, and tell your doctor about supplements you take.
Common questions
What is Calcimax Forte?
Calcimax Forte is a tablet by Meyer Organics containing Calcium carbonate 1000 mg + Vitamin D3 500 IU + Magnesium 240 mg (as hydroxide) + Zinc 11 mg.
What is Calcimax Forte used for?
Provides calcium for bones and teeth; also acts as an antacid. Helps the body absorb calcium and keeps bones and muscles healthy; treats vitamin D deficiency. Supports muscles, nerves and bones; used for low magnesium and sometimes cramps. Supports immunity, wound healing and growth; given with ORS in children's diarrhoea.
How should I take Calcimax Forte?
Take with meals for best absorption; no more than 500 to 600 mg of calcium at a time. Count calcium from milk, curd and paneer too. Daily doses (600 to 2,000 IU) or weekly 60,000 IU for a few weeks to correct deficiency, then monthly as advised; take with the fattiest meal. Do not continue 60,000 IU weekly for long without a blood test. Usually 200 to 400 mg a day with food; citrate and glycinate are absorbed better than oxide. Children with diarrhoea: 10 to 20 mg a day for 10 to 14 days. Adults usually 10 to 25 mg a day with food. Always follow the dose your doctor or the pack gives.
What are the side effects of Calcimax Forte?
Common side effects include: Constipation, wind, bloating, Usually none at normal doses, Diarrhoea, stomach upset, Nausea, metallic taste, stomach upset. Get medical help straight away for: Kidney stone pain, confusion, thirst or vomiting (too much calcium), Thirst, passing lots of urine, nausea, confusion or kidney stones (too much vitamin D raises calcium), Weakness, slow heartbeat or drowsiness (too much, especially with kidney disease), Numbness or anaemia from long high-dose use (copper deficiency).
Does Calcimax Forte need a prescription?
It is sold as a supplement and does not need a prescription.
Can I take Calcimax Forte in pregnancy or while breastfeeding?
Calcium needs rise in pregnancy and breastfeeding; supplements are commonly prescribed. Recommended in pregnancy and breastfeeding at normal doses; high-dose regimens only on medical advice. Usual doses are considered acceptable in pregnancy and breastfeeding. Normal doses are fine in pregnancy and breastfeeding.
What are the substitutes for Calcimax Forte?
We have no other brand with exactly the same composition and strength in our list yet. Ask your pharmacist for an equivalent.
Sources and further reading
- Calcium carbonate: NIH Office of Dietary Supplements · NHS · MedlinePlus
- Vitamin D3 (cholecalciferol): NHS · MedlinePlus
- Magnesium: NIH Office of Dietary Supplements · NHS · MedlinePlus
- Zinc: NIH Office of Dietary Supplements · NHS · MedlinePlus
NHS (UK National Health Service) and MedlinePlus (US National Library of Medicine) are free, reviewed medicine guides. Brand names and doses there may differ from India.
Composition checked against pack details from large Indian online pharmacies. Last reviewed 31 October 2026. Written by Satya Babu.
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