Darzalex vs Farxiga
Side-by-side drug price comparison from Medicare Part D data
Verdict
Farxiga costs 98% less per claim than Darzalex ($266.00 vs $11346.00). Darzalex has a generic alternative available. Total Medicare spending: Darzalex at $3.2B vs Farxiga at $3.0B.
| Metric | Darzalex | Farxiga |
|---|---|---|
| Avg Cost per Claim Average cost Medicare pays per prescription claim | $11,346 | $266* |
| Total Medicare Spending Total Medicare Part D spending on this drug | $3.2B | $3.0B |
| Total Claims | 286,000 | 11,240,000 |
| Year-over-Year Change Price change from prior year (lower is better for patients) | 21.4%* | 31.5% |
| Generic Available | Yes | Yes |
| Condition | Cancer | Diabetes |
| Total Beneficiaries | 32,000 | 1,340,000 |
Farxiga costs 98% less per claim than Darzalex ($266.00 vs $11346.00). Darzalex has a generic alternative available. Total Medicare spending: Darzalex at $3.2B vs Farxiga at $3.0B.
Explore More
Comparing Darzalex and Farxiga on U.S. Medicare prescription-drug pricing requires lining up the underlying CMS Medicare Part D Drug Spending data data side by side. The table above runs the comparison on the canonical fields; the narrative below identifies the factor or factors that drive the most meaningful difference between the two.
Practical use of the comparison: read the data above, then drill into the individual Darzalex and Farxiga detail pages for the underlying breakdown. A pairwise comparison answers the relative question; the per-entity pages answer the absolute question.
Source: CMS Medicare Part D Spending, 2026.