Drugs · acquisition-cost intelligence
Aldactone
spironolactone· ingredient spironolactone· SPIRONOLACTONE 100 mg/1; SPIRONOLACTONE 25 mg/1; SPIRONOLACTONE 50 mg/1
What this is. Acquisition-cost intelligence for pharmacy & clinic buyers — the historical trend, generic-equivalent costs, and Part D posture. NADAC is a pharmacy acquisition cost (the national average pharmacies pay), not a retail or cash price — for consumer cash prices use GoodRx/your plan.
Acquisition benchmark · NADAC per EA
$0.06703
NADAC — pharmacy acquisition cost, not a retail/cash price
Acquisition-cost history
Weekly NADAC per EA — the trend nobody else shows. 10 weeks.
2025-12-172026-05-27
Same-ingredient options by acquisition cost
Other spironolactone products, cheapest acquisition cost first. Per EA — confirm strength/form equivalence before switching.
| Product | NADAC / EA | vs this |
|---|---|---|
| spironolactone | $0.04474 | −$0.02230 |
| CaroSpir | $1.75 | +$1.68 |
Medicare Part D coverage · CY2026
On 328 plan formularies · typical tier 1
Prior auth 0% · Step therapy 0% · Quantity limit 0% of formularies
Sources: CMS NADAC (pharmacy acquisition cost), FDA NDC + RxNorm (identity), RxClass (therapeutic class), CMS Medicare Part D formulary (coverage). Observed reference data for professional buyers — not a retail/cash price, not pricing or medical advice. Verify before purchasing or substituting.