Treatment of Osteomalacia: First-Line Oral Vitamin D and Calcium Supplementation
Osteomalacia (ICD-11 FB83.2, ICD-10 M83) is managed through a structured first-line protocol centred on correcting the underlying deficiency and achieving defined laboratory targets. The approach involves oral vitamin D supplementation combined with calcium, with clinical outcomes measured against specific serum thresholds.
Treatment approach
First-line therapy involves oral vitamin D supplementation — available in multiple scheduling options depending on the clinical context — always accompanied by calcium supplementation. The specific schedule, loading strategy, and calcium requirements are laid out in the complete protocol.
Dosing schedules, loading-dose considerations, and the full calcium guidance are detailed in the structured regimen.
Treatment targets
The clinical goal is to restore and maintain serum 25OHD above 30 ng/mL, with PTH levels kept within the reference range. With effective therapy, clinical symptoms begin to improve within a few weeks; complete resolution may take several months.
References
DOI: 10.1002/jbm4.10447
- Therapy consists of daily oral doses of vitamin D in the range of 800 to 1200 IU.
- Another schedule entails administration of 50 000 IU of native vitamin D weekly for 8 to 12 weeks, followed by a maintenance dose of 1000 to 2000 IU daily.
- Because these regimens may take a long time to reach vitamin D sufficiency, higher loading doses not exceeding 100 000 IU can be utilized based on pharmacological principles.
- Treatment with vitamin D must be always accompanied by adequate calcium supplements.
- One-thousand milligrams of elementary calcium divided in two or three doses is sufficient in most cases.
- Target levels of serum 25OHD should be aimed at maintaining >30 ng/mL and PTH levels within the reference range.
- With effective therapy, clinical symptoms begin to improve within a few weeks; however, complete resolution of symptoms may take several months.
View source ↗