drugname-standardizer 1.1.6

A Python tool for standardizing drug names using the latest FDA's UNII Names list.

Drugname Standardizer

The Drugname Standardizer is a Python tool for standardizing drug names using the official FDA's UNII Names List archive. It notably supports both JSON and CSV input formats, making it easy to ensure consistent drug naming in datasets.

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Features

• A trusted source for drug synonyms : the package automatically downloads the latest version of the UNII Names file from the official FDA repository. The UNII_Names.txt is saved to the package's data/ folder for future use. The user can also choose to indicate another local UNII Names file if a particular version is preferred.

• Parsing of the FDA's UNII Names List to map drug names (code / official / systematic / common / brand names) to a single preferred name (i.e. the Display Name of the UNII Names file).

• Input versatility:

  • a single drug name,
  • a list of drug names,
  • a JSON input file (a list of drugs to standardize)
  • a CSV input file (a dataframe containing a column of drugs to standardize)

• Provides both a Python package interface for scripting and a command-line interface (CLI) for direct use.

• Resolves naming ambiguities of the FDA's UNII Names file by selecting the shortest Display Names. Rare but exists: 55 / 986397 associations in UNII_Names_20Dec2024.txt. For example, for PRN1008 the ambiguity is solved by keeping RILZABRUTINIB whereas 2 associations exist:

  • PRN1008 ... ... RILZABRUTINIB, (.ALPHA.E,3S)-
  • PRN1008 ... ... RILZABRUTINIB

Warning:

There are code / official / systematic / common / brand names for drugs. Some are linked to different level of details about the compound. The standardization proposed here gathers information at the "upper" level (i.e. the less detailled one). I relied on the "Preferred Substance Name" (= the Display name field) indicated in the correspondence table provided by the FDA.
For instance : both 3'-((1R)-1-((6R)-5,6-DIHYDRO-4-HYDROXY-2-OXO-6-PHENETHYL-6-PROPYL-2H-PYRAN-3-YL)PROPYL)-5-(TRIFLUOROMETHYL)-2-PYRIDINESULFONANILIDE (systematic name) and Aptivus (brand name) become TIPRANAVIR.

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Usage

Python API

You can use the package programmatically in your Python scripts:

from drugname_standardizer import standardize

Examples:

- Get the preferred name for a specific drug:

drug_name = "GDC-0199"
preferred_name = standardize(drug_name)
print(preferred_name)  # Outputs: VENETOCLAX

- Standardize a list of drugs:

drug_names = ["GDC-0199", "Aptivus", "diodrast"]
preferred_names = standardize(drug_names)
print(preferred_names)  # Outputs: ["VENETOCLAX", "TIPRANAVIR", "IODOPYRACET"]

- Standardize a JSON file:

standardize(
    input_file="drugs.json",
    output_file="standardized_drugs.json",
    file_type="json"
)
# Outputs: Standardized JSON file saved as standardized_drugs.json

- Standardize a CSV file:

standardize(
    input_file="dataset.csv",
    file_type="csv",
    column_index=1
)
# Outputs: Standardized CSV file saved as dataset_drug_standardized.csv

Command-Line Interface

You can also use a CLI for standardizing JSON and CSV files.

• Required arguments:
  • --input, -i: A drug name or the path to a JSON/CSV file
• Optional arguments:
  • --file_type, -f: Type of the input file (json or csv)
  • --output, -o: The output file name (relative path can be given). Defaults: the input file name with _drug_standardized added before the extension.
  • --column_index, -c: Index of the column containing the drug names to standardize (required for CSV files).
  • --separator, -s: Field separator for CSV files. Defaults: ,.
  • --unii_file, -u: Path to a UNII Names List file. Defaults: automatic download of the latest version.

Examples:

- Get the preferred name for a specific drug:

drugname_standardizer -i "DynaCirc"

- Standardize a JSON file:

drugname_standardizer -i drugs.json -f json

- Standardize a CSV file: e.g., using custom separator and outputfile name:

drugname_standardizer -i dataset.csv -f csv -c 2 -s "\t" -o standardized_dataset.csv

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Installation

Using pip

python3 -m pip install drugname_standardizer

GitHub repository

git clone https://github.com/StephanieChevalier/drugname_standardizer.git
cd drugname_standardizer
pip install -r requirements.txt

Requirements:

• Python 3.7+
• Dependencies:
  • pandas
  • requests

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How it works

1. Parse UNII File:

   • Reads the UNII Names List to create a mapping of drug names to the Display Name (i.e. the preferred name).
   • Resolves potential naming conflicts by selecting the shortest Display Name (55 / 986397 associations).

2. Standardize Names:

   • For a single drug name: return the preferred name.
   • For a list of drug names: maps drug names to their preferred names and return the updated list.
   • For JSON input: Maps drug names to their preferred names and saves the results to a JSON file.
   • For CSV input: Updates the specified column with standardized drug names and saves the modified DataFrame to a CSV file.

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Package structure

drugname_standardizer/
├── drugname_standardizer/
│   ├── __init__.py               # Package initialization
│   ├── standardizer.py           # Core logic for name standardization
│   └── data/
│       └── UNII_Names.txt  # UNII Names List file (ensured to be no older than 1 month when available)
├── tests/
│   ├── __init__.py               
│   └── test_standardizer.py      # Unit tests for the package
├── LICENSE                       # MIT License
├── pyproject.toml                # Package configuration
├── README.md                     # Project documentation
└── requirements.txt              # Development dependencies

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License

This project is licensed under the MIT License - see the LICENSE file for details.