Prescribing Information is available here. Adverse Event reporting can be found in the footer.
The UK’s #1 prescribed licensed vitamin D brand1
Vitamin D is pivotal in the well-being of every individual.2 During the winter, 30–40% of the UK population have vitamin D levels that fall below those recommended, and 2-13% in the summer.2
Fultium-D3 is indicated for the treatment and prophylaxis of vitamin D deficiency in adults and adolescents over the age of 12, and as an adjunct to specific therapy for osteoporosis in patients with vitamin D deficiency or at risk of vitamin D insufficiency.3-5
Fultium-D3: Prescribe by name for a simple approach to prevention and treatment of vitamin D deficiency3-5
A flexible approach: Offering a range of loading and maintainance doses to suit flexible daily, weekly or monthly dosing3-5
Suitable for all: Indicated for use in adolescents aged 12+, adults, and pregnant or lactating women*3-5
A licensed product: Ensuring acceptable standards of efficacy, tolerability, and quality3-6
The entire UK population are at risk of low vitamin D status, with multiple environmental and individual factors7,8
In the UK, 80–90% of vitamin D is derived from skin exposure to ultraviolet B (UVB) radiation from sunlight, with the remaining 10–20% being derived from dietary sources. During the UK winter months, a larger percentage of vitamin D needs to be obtained from body stores and food. There are specific medical conditions which can impair the absorption and activation of vitamin D, whilst some drugs can also increase the risk of vitamin D deficiency.7,8
In the UK, people are at an increased risk of vitamin D deficiency when serum 25(OH)D levels are < 25 nmol/L, whilst levels may be inadequate when serum 25(OH)D is between 25-50 nm/L.7,8
Approximately
1/6
adults in the UK have low levels of vitamin D, which can lead to rickets, bone pain and disabilities9
Approximately
40%
of people aged 19–64 years suffer from vitamin D deficiency in the UK winter months6
Up to
71x
prevalence of vitamin D insufficiency in dark-skinned ethnic subgroups, compared to white populations6
Over
20%
of children aged 11-18 experienced vitamin D deficiency all year round7
People who are at a higher risk of vitamin D deficiency include individuals that:7,8
Are aged 65 and over
Have low or no exposure to sunlight
Have a darker skin pigmentation
Have a gastrointestinal or malabsorption disorder
Have severe liver disease or end-stage chronic kidney disease
Take certain drugs that increase the risk of vitamin D deficiency
Are pregnant or breastfeeding
Are obese
Those at an increased risk of vitamin D deficiency who present with any of the following symptoms should be considered for prescription vitamin D treatment:7,8,10
Fatigue / tiredness
Muscle weakness
Muscle pain
Bone pain
Rickets in children
Prescribe Fultium-D3 by name for a simple approach to prevention and treatment of vitamin D deficiency3-5
Fultium-D3 is available in a range of loading and maintenance doses to support patients of all ages. Capsules come in 800IU, 3200IU and 20,000IU offering daily, weekly or monthly dosing. Doses of up to 3200IU are approved for pregnant and lactating women.*3-5 The capsules contain gelatine, which is certified as Halal and Kosher.11,12
Colour coordinated capsules come in 800IU, 3,200IU and 20,000IU strengths offering flexible daily, weekly or monthly dosing3-5
800 IU capsules
3,200IU capsules
20k IU capsules
Fultium-D3 patient website
Our Fultium-D3 patient website is a handy treatment guide for your patients which may help to explain what Fultium-D3 is, why they have been prescribed it, and how to take it.
*Always use care when prescribing in pregnancy as high doses of colecalciferol may affect the foetus. Children up to the age of six months who are formula fed are not as at risk of deficiency.
References
1. IQVIA. RXA Sales Dashboard – March 2026. Data on File, STADA UK, Thornton & Ross. 2. Calame W et al. Nutrients 2020; 12(6): 1868. 3. Fultium-D3 800IU Capsules SmPC. Accessed: April 2026. 4. Fultium-D3 3200IU Capsules SmPC. Accessed: April 2026. 5. Fultium-D3 20KIU Capsules SmPC. Accessed: April 2026. 6. Wan M et al. Br J Clin Pharmacol 2021; 87(3): 1338-46. 7. NICE. Clinical Knowledge Summaries (CKS): Vitamin D deficiency in adults. Accessed: April 2026. 8. NICE. Clinical Knowledge Summaries (CKS): Vitamin D deficiency in children. Accessed: April 2026. 9. Department of Health and Social Care. New review launched into vitamin D intake to help tackle health disparities. Accessed: April 2026. 10. Royal Osteoporosis Society. Vitamin D and Bone Health: A Practical Clinical Guideline for Patient Management in Children and Young People. Accessed: April 2026. 10. Halal Certification – Fultium.pdf. Data on File, STADA UK, Thornton & Ross. 11. Kosher Certification – Fultium.pdf. Data on File, STADA UK, Thornton & Ross.