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CAC 1000 Plus calcium and vitamin C effervescent tablet — Pakistan

CAC 1000 Plus Uses, Benefits and Side Effects in Pakistan

TL;DR — Key Takeaways
  • CAC 1000 Plus = calcium + vitamin C + vitamin D3 effervescent tablet
  • Dissolve one tablet in a full glass of water — never chew or swallow it whole
  • Take it with food — calcium carbonate absorbs better with a meal
  • Effervescent tablets contain sodium — ask your doctor if you have high BP, heart failure or kidney disease
  • Keep a 2–4 hour gap from thyroid tablets and certain antibiotics
  • It is not a skin-whitening product — it is a calcium supplement

What Is CAC 1000 Plus?

CAC 1000 Plus is the most widely sold effervescent calcium tablet in Pakistan. The "1000" refers to the amount of calcium a single tablet supplies, and "Plus" refers to the fact that it also contains vitamin C and vitamin D3 alongside the calcium.

It is a supplement, not a medicine: its job is to close the gap between the calcium your diet provides and the calcium your body needs. It comes in orange, lemon and mango flavours, and a sugar-free version is available, which is the better choice for people with diabetes.

An important caveat: a supplement only helps if there is a real calcium deficiency. Not every ache in the bones is low calcium — vitamin D deficiency, thyroid problems, arthritis or simple fatigue can all present the same way.

CAC 1000 Plus — Quick Facts
TypeEffervescent tablet (dissolved in water)
ContainsCalcium with vitamin C and vitamin D3 — check the exact strengths on your own pack, they vary by flavour and variant
FlavoursOrange, lemon, mango — plus a sugar-free version
Used forCorrecting or preventing calcium deficiency — a supplement, not a treatment
Most common side effectConstipation and bloating
Price in PakistanVaries with pack size, flavour and the sugar-free variant — check with your pharmacy

CAC 1000 Plus Uses — Who Is It For?

1. Dietary Calcium Deficiency

The commonest reason. People whose diet contains little milk, yoghurt, cheese or bone-in fish do not get enough calcium. The symptoms are usually silent — bones thin for years before anything is felt.

2. Pregnancy and Breastfeeding

Calcium requirements rise in both, because the baby builds its skeleton from the mother's stores. Doctors frequently prescribe a supplement — but the dose and duration should be set by the obstetrician.

3. After Menopause

Bone loss accelerates after menopause. Calcium and vitamin D help slow it, though neither is sufficient alone — weight-bearing exercise matters just as much. Read more on menopause symptoms and management.

4. Growing Children and Adolescents

Most of the skeleton's mineral is laid down before age 20. Children should only be given supplements on a doctor's advice, though — milk and yoghurt come first.

5. Older Adults and After a Fracture

Intestinal calcium absorption falls with age. In older adults who fracture a bone after a minor fall, doctors commonly prescribe calcium and vitamin D together.

How to Take CAC 1000 Plus

  • Drop one tablet into a full glass (about 200 ml) of clean water
  • Let it dissolve completely until the fizzing stops — do not rush it
  • Drink it once dissolved; never chew or swallow the tablet whole
  • Take it with or just after food — calcium carbonate is poorly absorbed on an empty stomach
  • Absorption is best at 500 mg or less at a time — if more than one dose a day is prescribed, space them out
  • Do not make the solution up and leave it standing — drink it fresh

Calcium Without Vitamin D Is Half a Treatment

This is the part most often missed. Calcium is only absorbed from the gut into the blood when there is enough vitamin D in the body. In vitamin D deficiency, most of the calcium you swallow is simply wasted, however many tablets you take.

Vitamin D deficiency is very common in Pakistan — sun avoidance, indoor lifestyles and full clothing all contribute. So if you are starting calcium, get your vitamin D status looked at as well; many people need both.

The Sodium Warning — the Small Print on the Pack

Every effervescent tablet contains sodium as part of what makes it fizz. That is by design, not a defect, and for healthy people it is not a problem.

It does matter, and should be raised with a doctor, if you have:

  • High blood pressure, especially if you have been told to cut down on salt
  • Heart failure or a tendency to fluid retention
  • Kidney disease
  • Any medically advised sodium restriction

For these patients the better option is often a plain swallowed calcium tablet rather than an effervescent one. That is a decision for the doctor, not a reason to switch brands on your own.

CAC 1000 Plus Side Effects

Common:

  • Constipation — the commonest. Drink more water and increase fibre; see managing constipation
  • Bloating and wind — from the effervescence
  • Belching and a heavy feeling in the stomach
  • Nausea, particularly if taken on an empty stomach
  • Occasional loose stools — from the vitamin C

Serious (uncommon — seek medical help):

  • Severe pain in the flank or back with blood in the urine — a kidney stone
  • Extreme thirst, frequent urination, confusion and weakness — signs of high blood calcium (hypercalcaemia)
  • Persistent vomiting and complete loss of appetite
  • Allergic reaction: rash, swelling of the face or tongue, difficulty breathing

Who Needs Caution

  • A history of kidney stones — not without medical advice; see kidney stones
  • Kidney disease or dialysis
  • Already-high blood calcium (hypercalcaemia)
  • Parathyroid disorders or sarcoidosis
  • High blood pressure, heart failure or salt restriction — because of the sodium
  • Anyone already taking another calcium or multivitamin supplement — the calcium adds up and can exceed the limit

Drug Interactions — Spacing Matters

This is the most important and most overlooked section. Calcium binds several medicines in the gut and stops them being absorbed. The medicine then fails to work, and neither patient nor doctor may realise why.

  • Thyroid tablets (such as Eltroxin) — leave at least 4 hours
  • Quinolone antibiotics (ciprofloxacin — Novidat, levofloxacin — Leflox) and tetracycline / doxycycline — 2 to 4 hours apart
  • Iron tablets (such as ferrous sulphate) — calcium reduces iron absorption; take them at different times
  • Bisphosphonates for osteoporosis — first thing on an empty stomach, with calcium much later
  • Some blood pressure medicines and diuretics — always tell your doctor you are on a supplement

The general rule: antibiotics and thyroid tablets in the morning on an empty stomach, calcium later in the day with a meal.

How It Differs From Other Calcium Supplements

Calcium is sold in several forms in Pakistan. Swallowed tablets such as Osnate-D supply calcium and vitamin D without the sodium load of an effervescent; multivitamins such as Surbex Z serve a different purpose entirely and contain little or no calcium, so they are not an answer to calcium deficiency.

What actually distinguishes them is three things: how much calcium, whether vitamin D is included, and how much sodium. Check those three on the pack and show it to your doctor.

CAC 1000 Plus and "Skin Whitening" — What's True

CAC 1000 Plus is frequently searched for as a skin-whitening product in Pakistan. There is no basis for this. It is a calcium supplement; the vitamin C in it is needed for collagen and acts as an antioxidant, but taking vitamin C by mouth does not change natural skin colour.

The same applies to weight loss — there is no connection. If you have a specific skin problem, it has its own treatment, and a supplement is not a substitute for it.

Food First

A supplement does not replace what you eat every day. Calcium sources that are easy to find in Pakistan:

  • Milk, yoghurt, lassi and cheese
  • Small fish eaten with the bones
  • Sesame seeds and almonds
  • Spinach and mustard greens
  • Chickpeas, beans and other pulses

People who already take one or two glasses of milk or yoghurt a day often need no supplement at all.

When to See a Doctor

  • A bone fractures after a minor fall
  • Tingling in the hands and feet, numbness around the mouth, or repeated muscle cramps
  • Severe flank or back pain, or blood in the urine
  • Extreme thirst, confusion and weakness after starting a supplement
  • You have existing kidney, heart or parathyroid disease and want to start a supplement

Summary

CAC 1000 Plus is Pakistan's most common effervescent calcium tablet, supplying calcium along with vitamin C and vitamin D3. Three things make the difference between taking it well and taking it badly: dissolve it in a full glass of water and take it with food, keep a 2–4 hour gap from thyroid tablets and certain antibiotics, and ask your doctor about the sodium if you have blood pressure, heart or kidney problems. Above all, remember it is a supplement, not a treatment — persistent bone pain or weakness needs a cause, not just a tablet. Discuss your symptoms with a doctor from home on Ilaaj AI.

Frequently Asked Questions

What is CAC 1000 Plus used for?

CAC 1000 Plus is an effervescent tablet that supplies calcium together with vitamin C and vitamin D3. It is used to correct or prevent calcium deficiency in people whose diet does not supply enough — pregnant and breastfeeding women, post-menopausal women, older adults, and people with weak bones. It is a supplement, not a treatment: if there is a genuine cause behind persistent bone pain or weakness, that cause still needs investigating.

How should CAC 1000 Plus be taken?

Drop one tablet into a full glass (about 200 ml) of clean water, let it dissolve completely until the fizzing stops, then drink it. It must never be chewed or swallowed whole. Take it with or just after food — calcium carbonate is absorbed better with a meal than on an empty stomach. Absorption is also best when no more than about 500 mg of calcium is taken at once, so if your doctor has prescribed more than one dose a day, space the doses out.

Can CAC 1000 Plus be taken every day?

Only if a doctor has advised it, and for the period they specify. The upper limit for adults is roughly 2,500 mg of calcium a day from all sources combined — that includes your food, milk and yoghurt, not just the tablet. Going above it raises the risk of kidney stones, constipation and high blood calcium. Taking a supplement daily for months without a reason is not harmless.

Does CAC 1000 Plus whiten skin?

No. This is the most common misconception about it in Pakistan. CAC 1000 Plus contains vitamin C, which the skin needs for collagen and which acts as an antioxidant, but taking a calcium supplement does not lighten natural skin colour — there is no evidence for it. Skin colour is determined by melanin. If you have a specific skin problem, it has its own treatment and a calcium supplement is not it.

Is CAC 1000 Plus safe in pregnancy?

Calcium requirements rise in pregnancy and doctors often do prescribe a supplement, but the dose and duration should come from your obstetrician rather than being started on your own. Two things are worth flagging to them: if you have high blood pressure, the sodium in an effervescent tablet matters, and if you are also taking iron, separate the two by at least two hours or each will reduce the other's absorption.

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