National Average Drug Acquisition Cost Dataset

$199 / year

The National Average Drug Acquisition Cost (NADAC) is designed to create a national benchmark that is reflective of the prices paid by retail community pharmacies to acquire prescription and over-the-counter covered outpatient drugs. This dataset shows this data.


The NADAC is posted to reflect findings from the previous month’s survey results incorporating the weekly price changes that have occurred in the interim weeks before the next monthly NADAC file.

The NADAC for prescription and over-the-counter covered outpatient drugs is reported at the 11-digit National Drug Code (NDC) level. The NADAC is calculated at the drug grouping, drug category, and pharmacy type level.

The source of pharmacy survey data used to calculate the NADAC. ‘ C/I’ indicates data was collected from surveys of Chain/Independent pharmacies. Other pharmacy type indicators are not used at this time.

Date Created


Last Modified




Update Frequency


Temporal Coverage

2013-09 to 2018-10-23

Spatial Coverage

United States


John Snow Labs => US Food and Drug Administration (FDA)

Source License URL

John Snow Labs Standard License

Source License Requirements


Source Citation



NADAC, Average Drug Price, Drug Acquisition Price, Retail Drug Prices, OTC Drug Acquisition Price, Prescription Drug Prices, Weekly Drug Price Change

Other Titles

Average Drug Acquisition Cost, National Average Drug Acquisition Cost (NADAC)

Name Description Type Constraints
NDC_DescriptionIdentifies the drug name, strength, and dosage form of the drug productstringrequired : 1
NDCNational Drug Codestringrequired : 1
NADAC_Per_UnitThe National Average Drug Acquisition Cost per unit in USDnumberrequired : 1 level : Ratio
Effective_DateThe effective date of the NADAC Per Unit cost.daterequired : 1
Pricing_UnitIndicates the pricing unit for the associated NDCstringrequired : 1
Pharmacy_Type_IndicatorThe source of pharmacy survey data used to calculate the NADACstringrequired : 1
Is_OTCIndicates whether or not the NDC is for an over-the-counter (OTC) productbooleanrequired : 1
Explanation_CodeCodes that pertain to how the NADAC was calculatedstringrequired : 1
Classification_for_Rate_SettingIndicates whether the NDC was considered brand (‘B’) or generic (‘G’) for the NADAC rate calculation process. If the NDC was considered brand (‘B’) and approved under an Abbreviated New Drug Application (ANDA), the indicator is shown as (‘B-ANDA’).stringrequired : 1 enum : Array
Corresponding_Generic_Drug_NADAC_Per_UnitThe NADAC for the corresponding generic drug in USDnumberlevel : Ratio
Corresponding_Generic_Drug_Effective_DateThe effective date of when the Corresponding Generic Drug NADAC Per Unit is assigned to a multiple source brand drug NDC. This date may not correspond to the NADAC effective date for the generic drug due to the method by which the corresponding generic drug NADAC effective date is assigned.datetime-
As_of_DateLast update datedaterequired : 1
ENEMA5367415510.0062014-08-20MLC/Itrue1, 5G2014-09-10
ENEMA5367415510.0062015-11-18MLC/Itrue1, 5G2015-12-02
ENEMA5367415510.0062015-11-18MLC/Itrue1, 5G2015-12-16
ENEMA5367415510.0062015-11-18MLC/Itrue1, 5G2015-12-09
ENEMA5367415510.0062015-11-18MLC/Itrue1, 5G2015-11-25
ENEMA5367415510.0062015-11-18MLC/Itrue1, 5G2015-11-18
ENEMA5367415510.0062014-08-20MLC/Itrue1, 5G2014-08-20
ENEMA5367415510.0062014-08-20MLC/Itrue1, 5G2014-09-03
ENEMA5367415510.0062014-08-20MLC/Itrue1, 5G2014-08-27
ENEMA5367415510.00632016-05-18MLC/Itrue1, 5G2016-05-18