getSpellingSuggestions

Information returned
Strings similar to a specified string
Service domain
https://rxnav.nlm.nih.gov
HTTP request
GET  /REST/spellingsuggestions.xml?name=value

Description

Get spelling suggestions for a given term (the name parameter). The suggestions are RxNorm terms contained in the current version, listed in decreasing order of closeness to the original phrase.

Upcoming Changes On or After August 2, 2021:

Scope

Active: concepts in the current RxNorm data set that have an atom with SAB=RXNORM and SUPPRESS=N

Parameters

ParameterLocationUseDescriptionDefault
formatPathOptional

Notation for results

One of:
.xml
Get results in XML
.json
Get results in JSON
.xml
nameQueryRequiredPossibly misspelled term

All query parameters are case-insensitive.

Output structure

Results are available as either XML or JSON.

  • The XML result has the root element rxnormdata. It is described in the XML Schema for the RxNorm API; the relevant element structure is summarized below. Elements that would be empty might be left out.

  • The JSON result is an object {...}, analogous to the content of the XML rxnormdata. Fields that might occur multiple times in the XML are expressed as an array. Fields that would be empty might be null or left out. Numbers are expressed as strings.

Both XML and JSON results follow the same outline:

rxnormdata
Root element in XML, or anonymous object in JSON
suggestionGroup
name
Misspelled term
suggestionList
suggestion (array)
RxNorm term

Example: Terms like "ambienn"

XML: https://rxnav.nlm.nih.gov/REST/spellingsuggestions?name=ambienn

JSON: https://rxnav.nlm.nih.gov/REST/spellingsuggestions.json?name=ambienn

An XML result is shown below.

<rxnormdata>
    <suggestionGroup>
        <name>ambienn</name>
        <suggestionList>
            <suggestion>Ambien</suggestion>
            <suggestion>amber</suggestion>
            <suggestion>Ammens</suggestion>
            <suggestion>Amrinon</suggestion>
            <suggestion>aspirin</suggestion>
            <suggestion>amrinone</suggestion>
            <suggestion>apigenin</suggestion>
            <suggestion>arbutin</suggestion>
            <suggestion>algin</suggestion>
            <suggestion>alizan</suggestion>
        </suggestionList>
    </suggestionGroup>
</rxnormdata>