Butabarbital / hyoscyamine / phenazopyridine Oral Tablet
RxNorm 374797

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 374797 represents a standardized clinical drug concept used for cross-system interoperability. This concept aggregates multiple Atom IDs (AUIs), which are specific naming variations and synonyms used across pharmaceutical databases to ensure accurate medication mapping for: butabarbital / hyoscyamine / phenazopyridine Oral Tablet.

The following semantic concepts and normalized strings are associated with this clinical entity:

SCDF
Butabarbital / hyoscyamine / phenazopyridine Oral Tablet
AUI:12265354
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This clinical crossover tool is designed for healthcare professionals, pharmacists, and data analysts to safely compare substitute products and manage medication interoperability.

SCDF

Semantic Clinical Drug Form (SCDF):
Butabarbital / hyoscyamine / phenazopyridine Oral Tablet
(Atom ID: 12265354)

Clinical Status & Identity

Prescribable Status
NO (Reference)
Part of the RxNorm Current Prescribable Content subset including all drugs available for prescription in the USA.
Concept Description
butabarbital / hyoscyamine / phenazopyridine Oral Tablet
Official description of the drug concept as defined in the source vocabulary.
Suppress Flag
O
N: Not suppressible | O: Obsolete | Y: Suppressed by editor | E: Unquantified non-prescribable drug.

Interoperability & Coding

Concept ID (RxCUI)
374797
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12265354
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SCDF
Semantic Clinical Drug Form (Ingredient + Dose Form)
Source Code
374797
The "Most useful" identifier asserted by the original source vocabulary.

Source & Registry Data

Source Name
RxNorm Vocabulary (RXNORM)
The official name and abbreviation for the vocabulary source.
Source Version
20AA_260601F
The specific version of the vocabulary provided by the source.
Update Date
June 01, 2026
The date when this RxNorm data was last updated by the NLM.
License Contact
RxNorm Customer Service, , U.S. National Library of Medicine, 8600 Rockville Pike, , Bethesda, MD, United States, 20894, (888) FIND-NLM, , https://support.nlm.nih.gov/support/create-case/, https://www.nlm.nih.gov/research/umls/rxnorm/
Source licensing contact information.

Technical Attributes & Logic

RXN OBSOLETED
09/29/2025
Date the RxNorm atom became obsolete

Patient Education

Butabarbital


Butabarbital is used on a short-term basis to treat insomnia (difficulty falling asleep or staying asleep). It is also used to relieve anxiety, including anxiety before surgery. Butabarbital is in a class of medications called barbiturates. It works by slowing activity in the brain.
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Hyoscyamine


Hyoscyamine is used to control symptoms associated with disorders of the gastrointestinal (GI) tract. It works by decreasing the motion of the stomach and intestines and the secretion of stomach fluids, including acid. Hyoscyamine is also used in the treatment of bladder spasms, peptic ulcer disease, diverticulitis, colic, irritable bowel syndrome, cystitis, and pancreatitis. Hyoscyamine may also be used to treat certain heart conditions, to control the symptoms of Parkinson's disease and rhinitis (runny nose), and to reduce excess saliva production.
[Learn More]


Phenazopyridine


Phenazopyridine relieves urinary tract pain, burning, irritation, and discomfort, as well as urgent and frequent urination caused by urinary tract infections, surgery, injury, or examination procedures. However, phenazopyridine is not an antibiotic; it does not cure infections.
[Learn More]


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