Average manufacturer price (AMP)
The average price wholesalers and certain pharmacies pay a drug manufacturer for a medication, net of discounts, as defined under federal law. AMP is a benchmark used to calculate Medicaid drug rebates and reimbursement.
What is average manufacturer price (AMP)?
Average manufacturer price (AMP) is a federally defined measure of the average price that wholesalers and certain pharmacies pay a drug manufacturer for a medication, after accounting for applicable discounts and rebates. It is calculated according to specific rules set out in law rather than being a simple list figure.
Because it reflects net amounts actually received by the manufacturer, AMP is intended to approximate real transaction prices rather than published sticker prices. Manufacturers are required to report it on a defined schedule.
Why does AMP matter in drug pricing?
AMP serves as a benchmark in federal programs, most notably in calculating the rebates manufacturers owe under the Medicaid Drug Rebate Program. As a result, the figure has direct financial consequences for both manufacturers and government payers.
Because it is grounded in net prices rather than inflated list prices, AMP is often viewed as a more honest reference point for what medications actually cost. Its role in rebate and reimbursement calculations makes accurate reporting important.
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