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National Center for Health Statistics Division of Health Care Statistics Home | Search NCHS | Ambulatory Health Care Data | Contact Us |
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This website has been archived for historical purposes and is no longer being maintained or updated.
This is the pre-2006 version of the Ambulatory Care Drug Database, which used NCHS classification systems along with FDA’s National Drug Code Directory for
coding drug characteristics. It is only useful for looking up drug characteristics in NAMCS and NHAMCS for data years prior to 2006.
For information about the current Ambulatory Care Drug Database, see the ACDDS - Generic Drug Search
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