CAI
Clinical Asset Index
by VOS Supply Group
Drugs · acquisition-cost intelligence

Metformin Hydrochloride

metformin hydrochloride· ingredient metformin· METFORMIN HYDROCHLORIDE 1000 mg/1; METFORMIN HYDROCHLORIDE 500 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
$0.34864
NADAC — pharmacy acquisition cost, not a retail/cash price

Acquisition-cost history

Weekly NADAC per EA — the trend nobody else shows. 6 weeks.

2025-12-172026-05-20

Same-ingredient options by acquisition cost

Other metformin products, cheapest acquisition cost first. Per EA — confirm strength/form equivalence before switching.

ProductNADAC / EAvs this
Metformin Hydrochloride$0.02457−$0.32410
Metformin$0.02990−$0.31870
Metformin$0.05528−$0.29340
metformin hydrochloride$0.20083−$0.14780
Metformin Hydrochloride Oral Solution$0.41741+$0.06880
saxagliptin and metformin$7.74+$7.39

Medicare Part D coverage · CY2026

On 4 plan formularies · typical tier 4
Prior auth 25% · Step therapy 25% · Quantity limit 75% 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.