Drugs · acquisition-cost intelligence
Colistimethate
colistimethate· ingredient colistinAntibiotics· COLISTIMETHATE SODIUM 150 mg/1; COLISTIMETHATE SODIUM 150 mg/2mL; COLISTIMETHATE SODIUM 150 mg/4mL
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
$15.49
NADAC — pharmacy acquisition cost, not a retail/cash price
Acquisition-cost history
Weekly NADAC per EA — the trend nobody else shows. 7 weeks.
2025-12-172026-06-03
Medicare Part D coverage · CY2026
On 328 plan formularies · typical tier 4
Prior auth 14% · Step therapy 0% · Quantity limit 9% 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.