RxNorm Semantic Concepts Index - 554

What is RxNorm?

RxNorm is a system developed and maintained by the National Library of Medicine (NLM). RxNorm is a normalized naming system for generic and branded drugs. RxNorm is also a tool that supports interoperability between different drug terminologies and other naming systems.

The following table is a complete listing of RxNorm concepts whose unique RxCUI identifier starts with "554".

Concept ID (RxCUI)NameTerm TypeTerm Type DescriptionIs Prescribable?
Concept ID (RxCUI): 5540Hydroxymethylglutaryl-coenzyme A synthaseDesignated preferred name (PT)NO
Concept ID (RxCUI): 5540Hydroxymethylglutaryl-coenzyme A synthaseSynonym (SY)Synonym of another TTY, given for clarity.NO
Concept ID (RxCUI): 5540Hydroxymethylglutaryl-coenzyme A synthaseFull form of descriptor (FN)NO
Concept ID (RxCUI): 554217 alpha-hydroxyprogesteroneSynonym (SY)Synonym of another TTY, given for clarity.YES
Concept ID (RxCUI): 554217 alpha-hydroxyprogesteroneIngredient (IN)A compound or moiety that gives the drug its distinctive clinical properties. Ingredients generally use the United States Adopted Name (USAN).YES
Concept ID (RxCUI): 554217 alpha-hydroxyprogesteroneTall Man Lettering Synonym (TMSY)Tall Man Lettering synonym of another TTY, given to distinguish between commonly confused drugs.YES
Concept ID (RxCUI): 554217 alpha-hydroxyprogesteroneDesignated preferred name (PT)YES
Concept ID (RxCUI): 554217 alpha-hydroxyprogesteroneFull form of descriptor (FN)YES
Concept ID (RxCUI): 5545Prostacyclin dehydrogenaseSynonym (SY)Synonym of another TTY, given for clarity.NO
Concept ID (RxCUI): 55471ranitidine bismuth citratePrecise Ingredient (PIN)A specified form of the ingredient that may or may not be clinically active. Most precise ingredients are salt or isomer forms.NO
Concept ID (RxCUI): 55471ranitidine bismuth citrateDesignated preferred name (PT)NO
Concept ID (RxCUI): 55471ranitidine bismuth citrateFull form of descriptor (FN)NO