Vitamin D3 IM

An intramuscular injection of 100,000 IU cholecalciferol (vitamin D3), designed to rapidly restore vitamin D levels in individuals with deficiency or insufficiency. Particularly relevant in northern latitudes where sunlight-driven synthesis is limited for much of the year. Quick administration with a physician assessment included.

Vitamin D3 (cholecalciferol) is a fat-soluble secosteroid that the body produces in response to ultraviolet B radiation from sunlight. In Scandinavian countries, the limited daylight hours and low sun angle between October and March mean that cutaneous vitamin D synthesis is negligible for roughly half the year, making deficiency and insufficiency highly prevalent in the Swedish population. Vitamin D plays a well-established role in calcium homeostasis and bone mineralisation, but research has also identified its involvement in immune regulation, muscle function, mood, and cardiovascular health. Deficiency may present as fatigue, muscle weakness, bone pain, or increased susceptibility to infections, though many individuals are asymptomatic despite suboptimal levels. The 100,000 IU intramuscular dose at MediBalans is a loading dose intended to rapidly elevate serum 25-hydroxyvitamin D levels in individuals with confirmed deficiency. This approach may be preferred over daily oral supplementation in cases where adherence is a concern or where rapid repletion is clinically desirable. The injection is administered quickly and includes a physician assessment to evaluate current vitamin D status and determine whether the loading dose is appropriate for the individual patient.