At a glance

QUICK SUMMARY

01 Type of medicine

Dietary Supplement

02 Generic
03 Active ingredient

Colecalciferol

04 Effective within
05 Works by

Supporting optimal Vitamin D levels in the body

06 Side effects

Medication details

Description

HuxD3 20,000 IU High Strength Vitamin D3

HuxD3 20,000 IU is a high strength vitamin D3 supplement containing colecalciferol, an essential component for maintaining healthy bones and teeth. Vitamin D assists in the regulation of calcium absorption, which is necessary for proper bone mineralisation.

How it works

Vitamin D is made in the skin from sunlight and is found in only a few foods, which is why levels fall in winter and in anyone who covers up or stays indoors. The body converts colecalciferol into the active form, which controls how much calcium is absorbed from the gut. Without enough of it, calcium absorption drops regardless of how much calcium is in the diet, and bone mineralisation suffers as a result.

Uses and applications

This supplement may be used to treat or prevent vitamin D deficiency, which can arise from inadequate dietary intake or insufficient sunlight exposure. It may also be used alongside other treatments for certain bone conditions such as osteoporosis. At 20,000 IU the capsules are a high strength preparation, taken on an intermittent schedule set by a clinician rather than daily.

How to use it

Take the capsules exactly as directed by your clinician, at the interval they have specified. Because vitamin D is fat soluble, taking the dose with a meal containing some fat helps absorption. Do not take additional vitamin D from other supplements or multivitamins at the same time without checking first.

Who it is for

It is for people needing higher levels of vitamin D, including older adults and those with specific medical conditions. It is not recommended during pregnancy or breastfeeding without medical supervision because of its strength, and your clinician should know about kidney problems, high calcium levels, sarcoidosis or kidney stones.

Safety and when to get advice

Vitamin D is stored in the body, so taking more than directed over time can raise calcium to harmful levels. Contact a clinician about nausea, vomiting, constipation, unusual thirst, frequent urination, weakness or confusion, which can indicate that. Do not combine high strength vitamin D products. Our UK pharmacy team can answer questions about this product before you buy.

Common questions

Why is it not taken daily?
At 20,000 IU it is a high strength preparation given at intervals set by a clinician rather than every day.

Should I take it with food?
Yes. Vitamin D is fat soluble, so a meal containing some fat helps absorption.

Can I take my multivitamin too?
Check first, since many contain vitamin D and the amounts add up.

Always read the patient information leaflet supplied with the pack before use.

Directions

Always follow your doctor’s instructions. Swallow capsules whole with water. Can be taken with or without food.

Ingredients

Colecalciferol (Vitamin D3) 20,000 IU. Other ingredients may include sodium and components of the soft gel capsule.

Side Effects

Nausea, vomiting, constipation, stomach pain, high blood calcium levels (hypercalcaemia), and high calcium in urine (hypercalciuria). Rarely, may cause allergic reactions like rash, itching, or swelling.

Warnings

Do not use if allergic to colecalciferol or ingredients; have hypercalcaemia, hypercalciuria, or kidney stones. Caution required with kidney disease, sarcoidosis, heart disease, or if taking calcium or vitamin D supplements. Pregnant/breastfeeding women should consult a doctor before use.

Medically reviewed and published

  • This page was medically reviewed by Dr Sohaib Imtiaz, Clinical Lead on

How It Works

3 MIN ONLINE ASSESSMENT

CLINICIAN REVIEWS YOUR CASE

PRESCRIPTION + NEXT DAY DELIVERY

Same day shipping and next day delivery

FAQs

Please read our FAQs page to find out more.

Is this medicine suitable for children?

No, it is not suitable for children under 12 years of age.

Can I take this during pregnancy or breastfeeding?

Due to the high strength, it is not recommended during pregnancy or breastfeeding without medical supervision.

Why is this a weekly dose rather than a daily one?

At 20,000 IU per capsule, this is a high-strength loading dose designed to correct a confirmed deficiency quickly under clinical guidance. Vitamin D is stored in the body and released gradually, so a larger weekly dose can achieve the same effect as a smaller daily one. Do not take it daily unless specifically told to by a clinician.

Can I take it alongside other vitamin D supplements?

No. Taking additional vitamin D or calcium supplements at the same time can push your levels too high (hypercalcaemia), which can affect your kidneys and heart. If you are already taking a multivitamin or calcium supplement, tell our pharmacy team at info@rightangled.com so they can check the total dose.

Didn’t find your answer?

Don't hestitate to contact us