Questions a plan sponsor actually asks.
What is Ammonium used for?
Ammonium is a alpha-Hydroxy Acid medication tracked in Medicare Part D.
Is there a generic for Ammonium?
Yes. 6 ANDAs filed at FDA, 4 generic manufacturers currently shipping.
How much does my plan pay for Ammonium?
Across 329 Part D plans, Ammonium averages $0.067/unit (NADAC). Lowest available: $0.060/unit. Highest in distribution: $0.072/unit.
Is Ammonium on the FDA shortage list?
No. Ammonium is not currently on the FDA Drug Shortage Database.
3 additional drug-specific questions are indexed in the page's FAQPage schema for search engines and LLM crawlers, beyond what renders visually above. View page source for the complete JSON-LD.
Sources · every number above traces back.
Drug identity, dosage forms, brand names: openFDA NDC Directory · First approval, ANDA history: FDA Orange Book (6 approvals on file) · NADAC unit costs: CMS NADAC weekly file (8 NDCs benchmarked) · Formulary tier and PA placement: CMS Part D Formulary file (329 plans) · Annualized spend, claims, beneficiaries: CMS Part D Spending Dashboard · Shortage status: FDA Drug Shortage Database · 340B exposure: HRSA OPAIS. Methodology and reproducibility notes on /methodology.