Adcal D3 Caplets
  • Adcal D3 Tutti Frutti
  • Adcal D3 Lemon
  • Adcal D3 Caplets
  • Adcal D3 Dissolve

Adcal D3

Save 20% Now From £3.35 Was £4.19

Medication features

  • Contains calcium and Vitamin D3
  • Caplets, dissolvable tablets, or chewable tablets
  • Lemon or fruit flavoured chewable tablets


Buy Adcal D3 Online UK

You can buy Adcal D3 chewable tablets and Adcal D3 caplets online from our UK registered pharmacy. Adcal D3 contains calcium and vitamin D3 and it helps to increase levels of vitamin D and calcium in people with low levels in the body. 

Simply complete an online assessment form for one of our UK registered pharmacists to complete a safety check. If your order is approved, our pharmacy team will dispense and dispatch the medicine to your chosen delivery address.

What is Adcal D3?

Adcal D3 is a medication that contains calcium and vitamin D3. The active ingredients are calcium carbonate and vitamin D3 (colecalciferol). Three types of Adcal D3 are available: chewable tablets, caplets, and effervescent tablets (Adcal D3 dissolve). 

The chewable tablets and effervescent tablets are the same strength and contain 1500mg of calcium carbonate and 400units (10micrograms) of colecalciferol. The caplets are half the strength and contain 750mg of calcium carbonate and 200units (5micrograms) of colecalciferol.

Adcal can be used to treat people with low calcium and vitamin D levels for various reasons. It can also be prescribed to people with bone problems like osteoporosis. By raising calcium and vitamin D levels, it can help prevent bone damage and fractures in people with osteoporosis.

How does it work?

Calcium and vitamin D are essential for healthy bones, teeth, and muscles. Our bodies get calcium from foods in our diet like dairy and green leafy vegetables. Our bodies create vitamin D from direct sunlight on the skin when we’re outdoors, although some foods also contain vitamin D.

Some people may not get enough sunlight, especially in the winter in the UK. Other people may not get enough calcium or vitamin D from their diet. This can lead to a lack of vitamin D and calcium, causing deficiencies. Eventually, this can lead to bone pain, osteoporosis and other conditions. Vitamin D deficiency can lead to rickets in children.

Adcal and similar supplements provide a source of calcium and vitamin D for the body. This helps to increase levels in the body and improve conditions caused or worsened by the deficiency, like osteoporosis.

Who needs Adcal D3?

Certain people are at a higher risk of vitamin D deficiency and therefore, the problems associated with this deficiency. At-risk people include:

  • Frail or housebound people who aren’t outdoors in sunlight enough
  • People who wear clothes that cover up their skin when outdoors
  • People with dark skin
  • People in a care home

It's difficult for people to get enough vitamin D from food alone and many people will not get enough sunlight in the winter in the UK. Public Health England advice is that everyone should take a vitamin D supplement between October and early March.

Adcal D3 alternatives

There are various vitamin D products available to buy over the counter and via NHS prescriptions. Strengths of vitamin D vary from around 200IU to 4000IU. Most people are recommended to take 400IU and are unlikely to need higher strengths.

One product that contains 400IU of vitamin D is Pharma Nord Bio-Vitamin D3. An example of a product that contains 1000IU of vitamin D is Vitabiotics Ultra D3


What is Adcal D3 for?

Adcal D3 tablets help to increase calcium and vitamin D levels in the body. This can be useful for people with low levels of vitamin D or calcium. It can also be prescribed to treat patients with osteoporosis.

When is the best time of day to take Adcal?

Ideally, one dose should be taken in the morning and one dose should be taken in the evening. Taking Adcal with a meal can improve its absorption into the body. This is because the fat in food helps the body absorb Adcal. 

Does Adcal contain vitamin D?

Yes, one of the active ingredients is vitamin D3. The other active ingredient is calcium carbonate.

Can you buy Adcal D3 over the counter?

Adcal, in the UK, is categorised as a ‘pharmacy’ medicine. This means you can buy Adcal over the counter at a pharmacy. You can also buy Adcal online from our UK registered online pharmacy service.

Side Effects

Adcal D3 Side Effects

Rare Adcal side effects include constipation, stomach ache, diarrhoea, nausea, and wind. Another rare side effect is too much calcium in your blood (hypercalcaemia) or too much calcium in your urine (hypercalciuria). 

Some people may experience an allergic reaction to Adcal tablets. Symptoms of an allergic reaction include swelling of the tongue or throat, wheezing, itching, and rash. If you notice any of these signs after taking the tablets, stop taking the tablets and seek medical attention urgently.

You can find more information in the patient information leaflet.



The usual dose for the chewable tablets or effervescent tablets is two tablets daily. Ideally, you should take one in the morning and one in the evening. The usual dose for Adcal caplets is 2 caplets twice daily, ideally two caplets in the morning and two in the evening. 

Your doctor may prescribe you a different Adcal D3 dose. If your doctor has prescribed it to you, you should take it exactly as your doctor has said.

For the effervescent tablets, dissolve one tablet in a glass of water (200 ml) and drink immediately, do not chew or swallow the tablets whole.



This medicine isn’t suitable for everyone to take. If you have kidney problems, sarcoidosis, or an intolerance to certain sugars, you should speak to your doctor before taking this medicine. You should also speak to your doctor before taking this medicine if you have high calcium levels in the blood or urine. You should not take this medicine if you are allergic to calcium carbonate, colecalciferol, or any of the other ingredients in the tablets. 

Certain medicines can interact with Adcal. Examples include iron medication, certain antibiotics, levothyroxine, and bisphosphonates. With some medicines, leaving 4 hours between taking Adcal and these medicines can reduce the interaction. 

You should speak to your doctor or pharmacist for advice on Adcal and other medicines. You can also find further information in the patient information leaflet.

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