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TheiCal-D3 Chewable Tablets

  • High-strength Calcium (1000mg) & Vitamin D3 (880 IU)
  • Supports bone density and osteoporosis treatment
  • Easy-to-take orange-flavoured chewable tablets
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In stock

£6.59
24 hr tracked delivery once approved
Fast & Free Delivery Options

Variety of delivery options including next day & free delivery.

100% UK-based Pharmacy

Pharmacy, clinic and prescribers based in Greater Manchester.

Free Online Consultations

Start your treatment with a quick and free online consultation.

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About TheiCal-D3 Chewable Tablets

TheiCal-D3 Chewable Tablets are a high-strength combination supplement containing 1000mg Calcium and 880 IU Vitamin D3. These tablets are specifically formulated to treat and prevent calcium and vitamin D deficiencies, particularly in the elderly. They are also used as an essential adjunct to specific osteoporosis treatments for patients at risk of deficiency. The pleasant orange flavour and chewable format make them a convenient alternative for those who struggle to swallow large pills.

TheiCal-D3 is suitable for adults and is available in the following pack size:

  • TheiCal-D3 Chewable Tablets – 30 Tablets
Medication Name TheiCal-D3 1000 mg / 880 IU Chewable Tablets
Active Ingredients Calcium Carbonate (1000mg Calcium) and Colecalciferol (880 IU Vitamin D3)
Medication Form Chewable tablet
Used to Treat Calcium/Vitamin D deficiency and Osteoporosis support
Available Sizes 30-tablet pack
Who Can Use It Adults and the elderly
Prescription Required? No – Pharmacy (P) medicine
Patient Information Leaflet TheiCal-D3 – Patient Information Leaflet

What Is TheiCal-D3 Used For?

TheiCal-D3 is used to correct or prevent a lack of calcium and vitamin D in the body. It is frequently recommended for elderly patients who require additional bone support and is used alongside prescription osteoporosis medications to ensure the body has the necessary building blocks for bone density and strength.

Who Is TheiCal-D3 Suitable For?

TheiCal-D3 is suitable for adults and the elderly. It is not recommended for use in children or adolescents.

Do not use TheiCal-D3 if you:

  • Are allergic to calcium, vitamin D3, or any of the ingredients (especially peanut or soya)
  • Have high levels of calcium in your blood (hypercalcaemia) or urine (hypercalciuria)
  • Suffer from severe kidney problems or kidney stones
  • Have high levels of vitamin D in your blood

Speak to a healthcare professional before use if you:

  • Suffer from sarcoidosis
  • Have impaired kidney function
  • Are already taking other supplements containing calcium or vitamin D
  • Are immobilised and suffering from osteoporosis

Ingredients

Other ingredients: Isomalt (E953), xylitol, sorbitol (E420), citric acid anhydrous, sodium dihydrogen citrate, magnesium stearate, carmellose sodium, orange flavour “CPB”, orange flavour “CVT” (contains sorbitol), aspartame (E951), acesulfam potassium, sodium ascorbate, all-rac-alpha-tocopherol, modified maize starch, sucrose, triglycerides medium chain, and silicon dioxide colloidal.

How to Use TheiCal-D3

  1. Take one tablet daily, preferably at the same time each day.
  2. Chew the tablet thoroughly before swallowing.
  3. The tablets can be taken with or without food and water.

If you are pregnant or breastfeeding, consult your doctor before use. In pregnancy, the daily intake should not exceed 1500 mg calcium and 600 IU vitamin D3; therefore, this high-strength tablet should only be used if specifically directed by a doctor.

Possible Side Effects of TheiCal-D3

Uncommon side effects (may affect up to 1 in 100 people):

  • Excessive calcium levels in the blood or urine

Rare side effects (may affect up to 1 in 1,000 people):

  • Nausea, diarrhoea, or abdominal pain
  • Constipation, gas (flatulence), or bloating
  • Skin rash, itching, or hives

Side effects are generally mild when taken at the recommended dose.

Warnings and Precautions

  • Do not exceed the recommended daily dose of one tablet.
  • Contains Aspartame (E951), a source of phenylalanine, which may be harmful to people with phenylketonuria.
  • Contains Sorbitol, Isomalt, and Sucrose; consult your doctor if you have an intolerance to certain sugars.
  • This product contains soy bean oil; do not use if you are allergic to peanut or soya.

Storage Instructions

  • Store in the original package to protect from light.
  • Keep the container tightly closed to protect from moisture.
  • Keep out of sight and reach of children.
  • Do not use after the expiry date stated on the pack.

 

TheiCal-D3 Chewable Tablets Reviews

Our Experienced UK-based Pharmacy Team

Clinical Consultant
MUDr, MRCEM, EBCEM, FRCEM
GMC no. 7176414

Pharmacist
MPharm
GPhC no. 2065469

Pharmacist
MPharm
GPhC no. 2046514

Page content authored by Amjad Khan, last reviewed by Dr Hussain Ahmad on 1st April 2026.

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