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RxNav Updates
updated: 1/30/2013
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ATC graph added
An Anatomical Therapeutic Chemical (ATC) graph is available for ingredients under the "Class View" tab.
The following update was made on September 10, 2012
Simplified and Table Views added in the RxNorm Graph
The Simplified View and the Table View were added to the view menu.
The Simplified view displays four tables in the graph: Ingredients (including multiple ingredients), brands, clinical drugs (including clinical packs) and branded drugs (including branded packs).
The Table view presents the full RxNorm graph in a tabular form.
Class View Tab added to display MeSH Pharmacologic Actions
A new tab called "Class View" has been added.
The Class View tab is activated when a selected ingredient or brand has an associated pharmacologic action in MeSH. When this tab is selected the MeSH pharmacologic action graph is displayed. For example:
The following update was made on February 24, 2012
Form or Group View in RxNorm Graph
A view menu was added to allow the user to display the RxNorm graph in either a Group View or a Form View.
When Group View is selected, the clinical dose form groups (SCDG), branded dose form groups (SBDG) and dose form groups (DFG) are displayed in the graph. The Group View is the default view. The Form View displays the clinical dose forms (SCDF), branded dose forms (SBDF) and dose forms (DF) in the graph.
When users search for a term which would not be displayed in the current view, RxNav informs the user that the current view will be switched, and after acknowledgement switches the view. For example, if the RxNorm graph is displaying the Group View and the user searches for morphine oral tablet (an SCDF term), a popup window will inform the user that the graph will be switched to Form View. After the user clicks the Ok button the Form View will be displayed.
The following updates were made on January 11, 2012
New Term Types in the RxNorm Graph
The boxes in the RxNorm Graph labelled "Clinical Dose Form", "Branded Dose Form" and "Dose Form" have been replaced by "Clinical Dose Form Group", "Branded Dose Form Group" and "Dose Form Group" respectively, which represent term types (TTY) recently introduced in the RxNorm data set.
Drug attributes added in the RxNorm Graph
Three new drug attributes are now displayed for concepts in the RxNorm Graph:
- Prescribable Drug - marked in the graph with a
icon.
- Human Drug - marked in the graph with a
icon.
- Veterinary Drug - marked in the graph with a
icon.
The icon 
denotes a drug that is both a human and veterinary drug.
A dropdown list of filters was added to the RxNorm Graph display. These filters allow the user to display only the concepts which contain the filter values. Selection of more than one filter means that the displayed concepts contain all the filter conditions.
Pillbox Tab for Drug Images
A tab labeled "Pillbox" was added to RxNav which displays drug images retrieved from the Pillbox API.
NDA search
A search has been added using the FDA New Drug Application (NDA) identifier. To use, select "NDA" in the "Search By:" box and enter the identifier in the search field box.
ANDA search
A search has been added using the FDA Abbreviated New Drug Application (ANDA) identifier. To use, select "ANDA" in the "Search By:" box and enter the identifier in the search field box.
Link to Drug Information Portal
A new button labeled "Drug Info" allows users to view related drug information from the Drug Information Portal for the selected concept. The button is located in the lower right corner of the RxNorm Graph display to the right of the MedlinePlus button.
The following update was made on August 29, 2011
Reformulated Concepts
RxNav now informs users when a concept has been reformulated, and gives the user the option of selecting the reformulated concept.
The following update was made on June 14, 2011:
RxNav Search Speed
Improvements were made to decrease the search time on string searches.
The following updates were made on May 4, 2011:
RxNav uses Java 1.6
The RxNav application now requires users to be running Java 1.6. The application will no longer run under 1.5.
Link to MedlinePlus
A new button labeled "MedlinePlus Connect" allows users to view related drug information from MedlinePlus for the selected concept. The button is located in the lower right corner of the RxNorm Graph display between the Drug Label and Copy buttons.
Roles are labeled in the NDF-RT graphs
The roles are now labeled in the NDF-RT graphs.
Version of the data set displayed
The version of the RxNorm data set is displayed in the upper left corner. The version contains the date of the monthly release, and the date of the last weekly update to the monthly release.
The following updates were made on February 9, 2011:
New Viewing Tabs Added
A new version of RxNav released in February, 2011 contains five tabs:
- RxNorm Graph. This is the default view containing the RxNorm graph of the drug concept relationships. This tab was previously labeled Terminology. All of the other tabs use the selected concept from this view to display related information.
- RxNorm Prop. This tab contains a table of RxNorm properties of the selected concept in the RxNorm Graph view. Properties include the RxNorm name, the term type (TTY), the RxCUI, any RxNorm synonyms, the vocabulary sources of other synonyms, UMLS CUI and UNII CODE identifiers, RXN_QUANTITY attribute, RXN_STRENGTH attribute and structured product label set identifiers.
- NDCs. This tab displays the National Drug Codes (NDCs) for a selected concept.
- RxTerms. This tab displays the RxTerms vocabulary information for a selected concept. RxTerms is not part of the RxNorm data set. For more information on RxTerms, click here.
- NDF-RT. This tab displays the National Drug File - Reference Terminology (NDF-RT) information for a selected concept. The NDF-RT view uses information from the NDF-RT data set which is external to the RxNorm data set. For more information click here.
The tabs are grayed out when no corresponding data is available.
Copy Button Added
A Copy button has been added to the RxNorm Graph view next to the Drug Label button. The Copy button can be used to copy concept information to external sources such as a spreadsheet. The copy button saves the highlighted concepts and prepends the RxCUI and a tab character to each concept name. The copy buffer can then be pasted into another document.
Status Field Changed
The status bar located at the bottom of the RxNorm Graph view has been changed to display only the RxCui and the concept name when a concept is selected. The status bar label has been changed to "Status".
The following update was made on January 31, 2011:
Paths to and from Precise Ingredients
A change was made in the calculation of the related concepts in the RxNav graph when searching for a precise ingredient or
when calculating the related precise ingredients. See the default paths table for more details.
The following update was made on December 22, 2010:
Remap RxCUI notification
A change was made to inform the user that a RxCUI being requested has been remapped to one or more RxCUIs. This message will be displayed when the user is searching by RxCUI and enters an RxCUI that has been remapped. The figure below shows an example of the popup message when the user searches for RxCUI 91919. Once the user acknowledges the popup message then the remapped data is displayed.
The following update was made on September 15, 2010:
Search Term Displayed First
A change was made to display the concept string associated with the search as the first entry in the appropriate table. For example, if the search string is "codeine", then "codeine" is listed first in the ingredient table followed by the multiple ingredient 
strings containing codeine. Previously, the table was alphabetically sorted.
The following updates were made on September 7, 2010:
Multiple Ingredient (MIN) Term Type
A multiple ingredient term type, TTY=MIN, was added to the RxNorm data set starting in September 2010.
The related multiple ingredient concepts are displayed in the Ingredient box in RxNav, and start with
the symbol . Multiple ingredient names are also displayed as part of the auto suggestion list.
Pack Icon
The icon 
is now used to indicate a branded pack (BPCK) or generic pack (GPCK). The gray shading on the BPCK and GPCK lines was removed.
The following update was made on August 10, 2010:
SPL_SET_ID search
A search has been added using the FDA structured product label set identifier. To use, select "SPL_SET_ID" in the "Search By:" box and enter the identifier in the search field box.
The following updates were made on August 6, 2010:
Multiple Search Results Displayed
A change was made so that when a search yields multiple concepts, a pop-up window will be displayed and the user will be given the option of selecting the concept to display in RxNav. Previously, RxNav always used the first choice.
HIC_SEQN Id search
A search has been added based on the ingredient identifer (HIC_SEQN) from First Databank Inc. To use, select "HIC_SEQN" in the "Search By:" box and enter the identifier in the search field box.
The following update was made on June 10, 2010:
NUI Id search
A search has been added based on the National Drug File Reference Terminology (NDF-RT) unique identifier. To use, select "NUI" in the "Search By:" box and enter the identifier in the search field box.
The following update was made on April 15, 2010:
MeSH Id search
A search has been added based on the Medical Subject Headings (MeSH) identifier. To use, select "MESH" in the "Search By:" box and enter the identifier in the search field box.
The following updates were made on January 28, 2010:
NDC tab
RxNav now contains a tab to display the National Drug Codes (NDCs) of the selected concept (the concept in the status window at the bottom of the Terminology tab). The tab is accessible when a brand or clinical drug concept is selected.
Drug Label button
A button labeled "Drug Label" was added in RxNav at the bottom right of the Terminology tab. The button is enabled when the selected concept contains an FDA drug label. Selecting the drug label button will display the FDA drug label information from the DailyMed web site.
Smaller window size
RxNav can now be resized to a smaller window size on the user's screen.
The following updates were made on December 15, 2009:
Status Display Color Change
The status display at the bottom of the screen has been changed to the same gray color as the other boxes.
The following updates were made on July 8, 2009:
Synonym names displayed for SCD and GPCK
RxNav now displays the synonym names when available for Clinical Data (SCD) and Generic Pack (GPCK) Data. The synonym names are available in the RxNorm data set for these data types starting with the July 2009 version.
The following updates were made on June 11, 2009:
Proxy Server support
RxNav now supports clients that use a proxy server or a proxy auto-configuration file. The proxy server settings or proxy configuration file can be specified using the Java Control Panel.
Cursor changes when searching
When the user executes a search in RxNav, the cursor will now indicate a search is in progress. On Windows machines the cursor changes to an hourglass icon. On Linux machines it displays a rotating circle.
BPCK Names in Autosuggest List
Branded Pack (BPCK) names have been added to the autosuggestion list.
The following updates were made on or before February 17, 2009:
RxNorm Version
RxNav displays the version of the RxNorm Data Set when the user positions the mouse over the RxNav icon. The version contains either one or two dates. The first (or only) date is the date of the last monthly release. The second date if present indicates the date of the last weekly release installed.
Autosuggest Feature
RxNav will now display a list of suggested terms in a popup window beneath the search string box. The suggested terms are ingredients or brand names and will be displayed after at least four characters are entered in the search string box. The user can then select an entry from the list using either the mouse or the up/down arrow keys or can continue typing in the search string box.
UNII_CODE Search
A search has been added based on the FDA Unique Ingredient Identifier (UNII) Code. To use, select "UNII_CODE" in the "Search By:" box and enter the identifier in the search field box.
SPL Search
A search has been added based on the FDA Structured Product Labels. To use, select "SPL" in the "Search By:" box and enter the identifier in the search field box.
Multum Identifier Search
A search has been added based on Multum MediSource Lexicon identifiers. The identifiers use the Term type and numeric code. For example: "CD1001". To use, select "MMSL_CODE" in the "Search By:" box and enter the identifier in the search field box.
Multiple Ingredient Search
A new feature to allow users to search on multiple ingredients has been added. To do this, type the ingredient names separated by plus (+) signs in the search field. For example, "acetaminophen + aspirin". RxNav will display all brands which contain at least all of the specified ingredients. Each ingredient will be checked separately for spelling, and alternate suggestions, if any, will be given.
Alternatively, when searching by RXCUI, multiple RXCUIs can be specified in the search field. For example, "161 + 1191" will display all the brands containing aspirin and acetaminophen.
GPCK data
The GPCK data is displayed in the table labeled "Clinical Drug or Pack". To distinguish the GPCK data from the Clinical Drug data, the GPCK data is shaded gray and starts with a double diamond symbol 
.
BPCK data
The BPCK data is displayed in the table labeled "Branded Drug or Pack". To distinguish the BPCK data from the Branded Drug data, the BPCK data is shaded gray and starts with a double diamond symbol .
Relationships Added
Several new relationship lines have been added to the display that were previously missing. The relationship line has been changed to two distinct lines between the entities, and arrows have been added to indicate the directional flow of the relationships.
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