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HuxD3 Capsules

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Package Type
20 Capsules
30 Veg Capsules
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Treatment Information

Table of contents

What is HuxD3?

HuxD3 is a high potency (cholecalciferol) supplement used to enhance the uptake of Vitamin D in the body. It is available as a capsule in 3200 IU (80 mcg) and 20,000 IU (500 mcg) strengths.

HuxD3 is free from gluten, alcohol, preservatives, yeast, gelatine, soya, peanut and nut oils. The raw material used in HuxD3 capsules is halal and kosher certified, and approved by the vegetarian society.

You don't need a prescription to buy HuxD3 capsules online from Prescription Doctor. Simply place your order before 3pm on weekdays, and our UK based pharmacy will dispatch your item the day via a fast and discreet next-day delivery.

What does vitamin D do?

Vitamin D helps in the absorption of calcium and phosphorus from the diet and use these minerals to keep the bones, teeth and muscles healthy. Vitamin D also has other roles in the body’s immune system and heart health.

A lack of vitamin D causes the bone problem in children called rickets (which causes bowed legs). It is recommended by the NHS that children between the ages of 1 and 4 take a daily vitamin D supplement.

In adults, vitamin D deficiency can cause muscle weakness and painful or brittle bones. If you spend a lot of time indoors and don’t get a lot of exposure to the sun, you should consider taking a vitamin D supplement.

During the colder months (October and March), it’s generally advised that adults take a vitamin D supplement. This is due to diminishing sunshine during winter, which results in less vitamin D being produced in the body.

There are not many foods which provide a sufficient amount of vitamin D for our bodies. While oily fish, egg yolks and fortified foods provide vitamin D, most of our vitamin D is produced by cells in our body when we expose our skin to sunshine.

Why do we need Vitamin D supplements?

The majority of Vitamin D we need is obtained through exposure to sunlight; however, during colder months, between October and March, the shorter days mean we can’t get a sufficient amount of Vitamin D from the sun alone. Moreover, some people are not exposed enough to sunlight to make the required amount of Vitamin D from sunlight.

Most vitamin D is acquired from the sun or fortified foods

While some foods, such as eggs, oily fish and fortified foods, provide us with vitamin D, it is not a sufficient quantity to fulfil our daily requirements.

Therefore, a good vitamin D supplement is often recommended during the winter and to those at risk of developing a vitamin D deficiency.

However, we only need 10 mcgs (400 IUs) of vitamin D per day. In fact, you can get your weekly need of vitamin D by spending 15 minutes in the midday sun for 3 days a week.

Who is at risk of developing Vitamin D deficiency?

The Department of Public Health determines the specific groups of the population who are at high risk of developing Vitamin D deficiency including

  • People with inadequate exposure to sunlight
  • People belonging to African, African Caribbean and South Asian community
  • People who used to cover the entire body with clothes
  • People who are on a completely vegan diet

All of these groups are recommended to have a daily intake of vitamin D supplement or fortified food to make up for the deficiency of vitamin D.

How does HuxD3 work?

HuxD3 replenish the amount of Vitamin D in our bodies. Vitamin D is an essential vitamin which helps to regulate the amount of calcium and phosphate in the body. It plays a significant role in keeping our bones strong. Vitamin D works by assisting in the reabsorption of calcium from the intestine and decreases its excretion from kidneys.

The prime source of producing vitamin D is sunlight. Vitamin D is naturally formed from the cholesterol in the body when the skin is exposed to the ultra-violet B rays of the sun.

In the absence of adequate sunlight, the level of vitamin D reduces in the body and a daily supplement such as HuxD3 is required to meet the requirement of vitamin D.

How do I take HuxD3?

Take one capsule of HuxD3 every two weeks or as directed by a doctor. Take whole capsule with a glass of water. If you have difficulty in swallowing the capsule, you can chew or break open it.

Vitamin D is a fat-soluble vitamin, so it is better to take HuxD3 with a meal to ensure the maximum absorption.

Side effects and cautions of HuxD3

Before taking HuxD3 capsules, it's important to familiarise yourself with the supplied safety information.

If you are unsure whether HuxD3 vitamin D capsules are suitable for you, speak to your doctor or a pharmacist for advice.

Side effects

While it is well tolerated and unlikely to cause side effects, HuxD3 vitamin D capsules can cause side effects for some people.

Common side effects:

  • Abdominal pain
  • Headache
  • Hypercalcaemia (high calcium levels in the blood)
  • Hypercalcuria (high calcium levels in the urine)
  • Nausea
  • Skin reactions

Uncommon side effects:

  • Constipation
  • Decreased appetite
  • Thirst
  • Vomiting

If you experience any side effects after taking HuxD3, regardless of whether they are listed above or in the patient information leaflet, seek advice from your doctor or a pharmacist.


Do not take HuxD3 if you are allergic to cholecalciferol or any of the other excipients listed on the supplement packet.

If you experience an allergic reaction after taking HuxD3 vitamin D supplements, stop taking the supplement and seek immediate medical attention by going straight to your nearest accident and emergency department. Remember to take the packaging and any remaining capsules with you so that doctors know exactly what and how much you took.

Signs of 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

Do not take HuxD3 vitamin D capsules if you are pregnant or breastfeeding without supervision from a healthcare professional.

Speak to your doctor for further advice on which vitamin D supplements are safe for you and your child during pregnancy and breastfeeding.

Other safety information

Always speak to your doctor before you buy HuxD3 capsules online from Prescription Doctor.

Do not take HuxD3 past the expiry date printed on the packaging. The date refers to the last day of the specified month. For example "EXP: 03/2025" means the 31st of March 2025.

Never throw away medicine via household or water waste. You should take any unwanted or expired medicine to your local pharmacy and ask them to dispose of it safely on your behalf.

Always store medicine out of sight and reach from children and pets.

Never share your medicines or health supplements with anybody else, even if they are experiencing the same symptoms as you or have been diagnosed with the same condition.

Frequently asked questions

What should I do if I forget to take HuxD3 when I should?

If you forget to take HuxD3 when you should, take it as soon as you remember. Do not take more HuxD3 capsules to make up for the dose you missed.

What should I do if I take too much HuxD3?

You should not take more than 100 micrograms (4,000 IU) of Vitamin D a day. Taking more Vitamin D than you should cause a build-up of calcium in the blood (hypercalcaemia) which is dangerous for your bones, kidneys and heart.

Can I drink alcohol while taking HuxD3?

Alcohol does not interact with HuxD3 capsules or Vitamin D. Avoid drinking more than the recommended limit of 14 units per week.

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.

Does vitamin D reduce the risk of coronavirus?

There is no evidence to suggest that taking vitamin D supplements will prevent or treat covid-19, according to NICE.

Table of contents

What is HuxD3?

What does vitamin D do?

How does HuxD3 work?

How do I take HuxD3?

Side effects and cautions of HuxD3

Frequently asked questions


NHS, 2020. Vitamins and minerals: Vitamin D

Treatment information

  • Product Name: HuxD3
  • Manufacturer: Huxley Europe
  • Active Ingredient(s): Colecalciferol
  • Administration: Oral
  • Presentation: Capsules
  • Available Strength: 20,000 IU
  • Exemption: Pharmacy
  • Dosage: Take 1 capsule every 2 weeks
  • Description: HuxD3 are a high strength vitamin D supplement which are taken fortnightly to increase your vitamin D levels
  • Drug Class: Vitamin
  • Alcohol Consumption: No influence
  • When Pregnant: Speak to your doctor before taking HuxD3 if you are pregnant on plan on becoming pregnant in the near future.
  • When Breastfeeding: Speak to your doctor before taking HuxD3 if you are breastfeeding.
  • Price: 5.99 GBP

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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