Get Approximate Match XML

Searches for strings in the data set that most closely match the term parameter. This function is useful for strings where an exact or normalized string match does not find the desired results. Results can optionally be limited to Active concepts with the option parameter. Results include the RxAUI, RxCUI, and, where permissible, the name of the closest atoms. Results are returned in XML format.

byRxNav (RxNorm Drug Names API)

700+calls

N/Alatency

Updated: Oct 27, 2026, 12:40 AM

Continue setup in your AI

Only public catalog IDs and a safe return path are handed to the Plugins page. This does not run the tool or confirm current availability, authorization, price, limits, or upstream status; those conditions are checked again before execution.

Selected tool: rxnav.prescribable.approximatematchxml.get.v1
Provider scope: RxNav (RxNorm Drug Names API)
Catalog updated: 2026-10-27T00:40:01.989419+00:00
Business task: Pending verification

Continue setupYou can return to this tool page if the selection is incomplete or expires.

Run on this page: Execute is the in-site test path. Continue setup is for adding the public selection to an external AI; the two paths are tracked and validated separately.

Discover -> Inspect -> Call

Call setup

Tool IDrxnav.prescribable.approximatematchxml.get.v1

Request parametersJSON

Before this Call

1 credit / call

The final charge is settled from actual provider usage and will appear in Usage.