Last updated: March 2026
How Much Does Vitamin D Rx (Ergocalciferol) Cost?
Cost Breakdown by Type
| Type / Procedure | Without Insurance | With Insurance |
|---|---|---|
| Ergocalciferol 50,000 IU Capsule (Vitamin D2) | $4 – $10 | $0 – $5 |
| Cholecalciferol 50,000 IU (Vitamin D3, Rx) | $8 – $15 | $3 – $8 |
What Affects the Cost
- Brand-name vs. generic availability
- Insurance formulary tier placement
- Pharmacy choice (retail vs. mail-order vs. Costco)
- Manufacturer savings cards and coupons
- Dosage and quantity prescribed
- Geographic location
Insurance Coverage
Typical coverage: Tier 1 generic — covered when prescribed for documented deficiency
Most insurance plans use a tiered formulary: Tier 1 (generic) $0-$15 copay, Tier 2 (preferred brand) $25-$75, Tier 3 (non-preferred brand) $50-$150, Tier 4 (specialty) $100-$500+. Prior authorization may be required for certain medications. Step therapy may require trying cheaper alternatives first.
How to Save Money
- Always ask for generic when available — saves 50-90%
- Use GoodRx, RxSaver, or similar discount cards
- Costco pharmacy is open to non-members and often has lowest prices
- Mark Cuban's Cost Plus Drugs offers transparent low pricing
- Manufacturer patient assistance programs provide free medication to qualifying patients
- HSA/FSA funds can cover medication costs tax-free
Related Procedures & Costs
Frequently Asked Questions
Prescription vitamin D (50,000 IU) costs $4 to $15 for a typical course without insurance. It is taken weekly rather than daily.
High-dose prescription vitamin D (50,000 IU weekly) is used to rapidly correct documented vitamin D deficiency. It is more potent than OTC doses and may be covered by insurance.
Vitamin D3 (cholecalciferol) is generally preferred as it raises blood levels more effectively than D2 (ergocalciferol). However, both correct deficiency when dosed appropriately.