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Adcal D3

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Package Type
112 Caplets
56 Chewable Lemon
56 Chewable Fruit
112 Chewable Lemon
112 Chewable Fruit
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Treatment Information

Table of contents

What is Adcal D3?

Adcal D3 is a Vitamin D supplement with Calcium that comes in flavoured chewable tablets and caplets which you swallow whole.

Adcal D3 is a supplement designed for those looking to boost their Vitamin D and Calcium intake. Vitamin D and Calcium are vital for keeping our bones, teeth and muscles strong and healthy.

A lack of Vitamin D can cause bone conditions such as rickets in children, osteoporosis, and may affect mobility or balance as you get older.

How much vitamin D do we need per day?

It is recommended to take between 10mcg (400 IU) to 20mcg (800 IU) per day.

Surprisingly, you don't need to spend all day every day in the sun in order for your body to produce enough vitamin D. Just 13 minutes of midday sun exposure three times a week is sufficient.

Some people may have underlying health conditions which make it difficult to get the right amount of vitamin D. If you are unsure whether you are at risk of vitamin D deficiency, speak to your doctor.

Your doctor can discuss with you how to safely increase the amount of vitamin D in your diet if required, and advise which vitamin supplements are safe for you.

How does Adcal D3 work?

Adcal D3 contains Vitamin D and Calcium, which are important ingredients for maintaining the health of bones and muscles.

Vitamin D is usually naturally produced by the body when the skin is exposed to sunshine. During winter months, many of us become deficient in Vitamin D because we do not get enough sun exposure to create ample amounts.

There are some foods that provide a small amount of Vitamin D including salmon, liver, cheese, some mushrooms and egg yolks. It can also be found in fortified foods like cereal, spreads and dairy substitute products, such as soya milk. Calcium can be found in beans, seeds, almonds, cheese and lentils, but it can be difficult to keep levels up naturally.

Some people who may benefit from taking Vitamin D all year round include:

  • people with darker skin
  • people who cover up when they go outside
  • People who spend a lot of time indoors, such as care home residents.

The NHS recommend children between the ages of 1 and 4 years should take 10mcg of Vitamin D daily.

Calcium is equally important for bone maintenance. Vitamin D helps with the absorption and utilisation of calcium, so taking Adcal D3 is doubly beneficial.

How do I take Adcal D3?

Take 2 Adcal D3 caplets or chewable tablets twice a day. 2 should be taken in the morning, and 2 in the evening. If possible, try to take them around the same time each day.

Swallow Adcal D3 caplets whole with a glass of water.

Do not chew or crush the caplet.

Adcal D3 is also available as flavoured, chewable tablets. These may be more suitable for you if you have difficulty swallowing regular tablets.

Always chew Adcal D3 Chewable Tablets before swallowing them.

When should I take vitamin D supplements?

You can take vitamin D supplements at any time of the day, though it is recommended to take it at the same time each day to maintain your vitamin D levels.

Because vitamin D is fat soluble, it is often recommended to take vitamin D supplements with a meal. This can make it easier to remember when to take your supplements.

If you are taking other medicines, your doctor may advise you to take your vitamin D supplement at a different time to prevent the risk of interactions.

Side effects and cautions of Vitamin D

Before taking health supplements, it's important to speak to your doctor or a pharmacist. Some health supplements are not suitable for some people and can interfere with medicines you may be taking.

Always read the accompanying leaflet of Adcal D3 before you take it.

You can view the patient information leaflet for Adcal D3 online here.

Who should seek medical advice before taking Adcal D3?

Adcal D3 may interfere with other medicines you may be taking. You should speak to your doctor or a pharmacist before taking Adcal D3 if you are taking other medicine, including:

  • Antacids for indigestion
  • Bisphosphonates
  • Calcium supplements
  • Corticosteroids
  • Diuretics (water tablets)
  • Fluoride
  • Iron
  • Tetracycline or quinolone antibiotics
  • Thyroxine

If you are taking any medicine listed above, speak to your doctor or a pharmacist for advice before you take Adcal D3.

Please inform our medical team of all the medicines you are currently taking, including those prescribed to you or bought over the counter, as well as other health and herbal supplements.

Side effects

Vitamin D is well tolerated and unlikely to cause side effects. However, some people may experience mild side effects after taking Adcal D3 vitamin D supplements.

Common side effects of Vitamin D include:

  • Abdominal pain
  • Headache
  • Hypercalcaemia (high amount of calcium in the blood)
  • Hypercalciuria (high amount of calcium in urine)
  • Nausea
  • Skin reactions

Uncommon side effects of vitamin D may include:

  • Decreased appetite
  • Constipation
  • Increased thirst
  • Vomiting

If you experience any side effects, regardless of whether they are listed above or in the patient information leaflet, speak to your doctor or ask a pharmacist.


Do not take Adcal D3 if you are allergic to any of the ingredients listed in the accompanying leaflet.

If you experience the signs of an allergic reaction, stop taking Adcal D3 vitamin D supplements and seek immediate medical attention by going straight to your nearest accident and emergency department. Remember to take any packaging and remaining medicine with you so that doctors know exactly what and how much you have taken.

Signs of an allergic reaction include:

  • Dry, red cracked skin
  • Itchy, red watery eyes
  • Raised, itchy rash (hives)
  • Swelling of the face, lips, tongue or throat
  • Tightness of the chest
  • Tummy pain, nausea, vomiting or diarrhoea
  • Wheezing

Pregnancy and breastfeeding

Adcal D3 must be used under medical supervision in pregnant and breastfeeding women.

If you are pregnant, plan on becoming pregnant, or breastfeeding, speak to your doctor before taking Adcal D3.

The NHS recommend pregnant and breastfeeding women to take vitamin D supplements. If you are unsure which vitamin D supplement is most suitable for you, speak to your doctor or ask a pharmacist for advice.

Other safety information

Always speak to your doctor or a pharmacist before you buy Adcal D3 online from Prescription Doctor.

Adcal D3 should not be taken within 2 hours of eating foods which contain high quantities of:

  • oxalic acid (e.g. spinach and rhubarb)
  • phosphate (bran)
  • phytic acid (e.g. whole cereals)

Do not take Adcal D3 past the expiry date printed on the packaging. The date refers to the last day of the specified month. For example, "03/2025" means the 31st of March 2025.

Never throw away medicines or health supplements via your household or water waste. Take any unwanted medicine to your local pharmacy and ask them to dispose of it safely on your behalf. This can help protect the environment.

Always store medicines and health supplements out of sight and reach from children and pets.

Never share your medicine with anybody else, even if they are experiencing the same symptoms or have the same condition as you.

Frequently asked questions

What should I do if I forget to take Adcal D3 when I should?

If you forget to take your dose of Adcal D3, take it as soon as you remember. If you are due for your next dose, skip the missed dose and continue to take your next dose as usual. Never take two tablets at once to make up for a missed dose.

What should I do if I take too much Adcal D3?

If you take too much Adcal D3, you should seek immediate medical attention. Call your doctor and make an emergency appointment, call the emergency NHS line on 111, or go straight to your local A&E department. Take the packaging and any leftover medication so the doctors know what and how much was taken.

Can I drink alcohol while taking Adcal D3?

Drinking alcohol is not thought to affect Adcal D3. The NHS advises to drink no more than 14 units of alcohol per week.

Will Adcal D3 impact my ability to drive or operate machinery?

Taking Adcal D3 is not thought to impair your ability to operate or drive machinery. If you are concerned, speak to your doctor before taking any supplement.

Can vitamin D prevent coronavirus?

According to NICE, there is no evidence to suggest that taking vitamin D supplements can prevent or treat Covid-19.

Where can I buy Adcal D3?

You can buy Adcal D3 online from the Prescription Doctor website. View our range of other healthcare supplements here.

Does sunscreen affect how our skin produces vitamin D?

According to the British Associated of Dermatologists (BAD), sunscreen may slightly decrease vitamin D levels though it's not unlikely that the use of sunscreen will drastically increase the risk of vitamin D deficiency.


NHS, 2020. Vitamins and minerals: Vitamin D

Kyowa Kirin Ltd, 2017. Adcal D3 Caplets: Summary of Product Characteristics

Treatment information

  • Product Name: Adcal D3
  • Manufacturer: Kyowa Kirin Ltd
  • Active Ingredient(s): Calcium Carbonate and Colecalciferol
  • Administration: Oral
  • Presentation: Caplets
  • Available Strength: 700 mg/200 IU
  • Exemption: Pharmacy
  • Dosage: Take 2 tablets twice a day
  • Description: Adcal D3 replenish the amount of vitamin D in the body.
  • Drug Class: Vitamin
  • Alcohol Consumption: No influence
  • When Pregnant: Speak to your doctor before taking Adcal D3 during pregnancy.
  • When Breastfeeding: Speak to your doctor before taking Adcal D3 while breastfeeding.
  • Price: 5.99 GBP
  • chewable tablets.jpg
Click here to view the Adcal D3 - Patient Information Leaflet

Authored & Reviewed By

Mohamed Imran Lakhi

Mohamed Imran Lakhi

MPharm - Lead Pharmacist
Imran Lakhi is the superintendent pharmacist and founder at Prescription Doctor. He has been at the core of our team.

Published on: 16/10/2020 Reviewed on: 13/03/2024

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