AtorvastatinAspirinQualityChecker

Atorvastatin Aspirin

API assay biosimilars dissolution fixed-dose combinations generics impurities market map
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Atorvastatin Aspirin Quality Checker — Combo Product (Statin + NSAID) (Ph. Eur., USP)

ℹ️ The utility checks content of both APIs, free salicylic acid, atorvastatin lactone, moisture, dissolution.
ℹ️ Does not use machine learning — rule-based logic only.
⚠️ CRITICAL! Free Salicylic Acid ≤0.1%. Moisture ≤1.0% (aspirin stability)!

Usage:
AtorvastatinAspirinQualityChecker.exe → demo mode
AtorvastatinAspirinQualityChecker.exe input.csv output.json → evaluate data

Input format:
BatchNumber,Atorvastatin_Content_Percent,Atorvastatin_Lactone_Percent,Atorvastatin_Other_Impurities_Percent,Aspirin_Content_Percent,Free_Salicylic_Acid_Percent,Aspirin_Other_Impurities_Percent,Total_Impurities_Percent,Loss_On_Drying_Percent,Dissolution_Atorvastatin_Percent,Dissolution_Aspirin_Percent,Weight_Variation_RSD,Friability_Percent,Heavy_Metals_ppm,Microbial_Count_TAMC,Microbial_Count_TYMC,EColi_Detected,Salmonella_Detected

Example:
ATO-ASP-2026-001,99.2,0.15,0.2,98.8,0.04,0.15,0.5,0.6,92.0,94.5,1.2,0.3,8,40,10,0,0

— WHY IS THIS NEEDED?
Atorvastatin + Aspirin combination widely used for secondary prevention of cardiovascular events:
• Aspirin is unstable: hydrolyzes to salicylic acid (GI irritant)
• Atorvastatin is sensitive to lactone ring hydrolysis and oxidation
• Co-presence requires special technology (layer separation, special excipients) to prevent interaction
• Synchronous release of both components is critical
⚠️ CRITICAL:
• Atorvastatin Content: 95–105%
• Aspirin Content: 95–105%
• Free Salicylic Acid: ≤ 0.1% (strict hydrolysis limit)
• Atorvastatin Lactone: ≤ 0.5% (specific impurity)
• Loss on Drying: ≤ 1.0% (moisture accelerates aspirin decomposition)
• Dissolution: ≥ 80% for both components (synchronicity)
• Microbiology: absence of pathogens
⚠️ Note: Utility focuses on combination stability. Exceeding moisture or free salicylic acid indicates risk of rapid tablet degradation during storage. Atorvastatin lactone control is important as lactone form has different PK and toxicity compared to active salt. Dissolution synchronicity ensures patient receives both therapeutic effects simultaneously.

input.csv

BatchNumber,Atorvastatin_Content_Percent,Atorvastatin_Lactone_Percent,Atorvastatin_Other_Impurities_Percent,Aspirin_Content_Percent,Free_Salicylic_Acid_Percent,Aspirin_Other_Impurities_Percent,Total_Impurities_Percent,Loss_On_Drying_Percent,Dissolution_Atorvastatin_Percent,Dissolution_Aspirin_Percent,Weight_Variation_RSD,Friability_Percent,Heavy_Metals_ppm,Microbial_Count_TAMC,Microbial_Count_TYMC,EColi_Detected,Salmonella_Detected
ATO-ASP-2026-001,99.2,0.15,0.2,98.8,0.04,0.15,0.5,0.6,92.0,94.5,1.2,0.3,8,40,10,0,0

URS & FS — user requirements and functional specification

This document defines user requirements and functional specification for the quality-control utility. It supports deployment discussion, IQ/OQ preparation and QC workflow integration.

Utility: AtorvastatinAspirinQualityCheckerAPI / object: Atorvastatin AspirinCategory: Global API

1. Scope

The Atorvastatin Aspirin Quality Checker utility is used for Atorvastatin Aspirin. The actual input.csv is the source of truth for the input structure; control criteria are defined by the executable and the domain description.

The utility does not use machine learning; decisions are produced by deterministic rules.

Categories: Global API

Tags: API, assay, biosimilars, dissolution, fixed-dose combinations, generics, impurities, market map, microbiology, solid dosage

2. Execution modes

AtorvastatinAspirinQualityChecker.exe                            → demo mode
AtorvastatinAspirinQualityChecker.exe input.csv output.json      → evaluate data

3. Key controlled areas

  • assay / content
  • dissolution / disintegration
  • microbiology and pathogens
  • heavy metals / elemental impurities

4. Domain limits and critical parameters

  • ⚠️ CRITICAL! Free Salicylic Acid ≤0.1%. Moisture ≤1.0% (aspirin stability)!
  • ⚠️ CRITICAL:
  • Atorvastatin Content: 95–105%
  • Aspirin Content: 95–105%
  • Free Salicylic Acid: ≤ 0.1% (strict hydrolysis limit)
  • Atorvastatin Lactone: ≤ 0.5% (specific impurity)
  • Loss on Drying: ≤ 1.0% (moisture accelerates aspirin decomposition)
  • Dissolution: ≥ 80% for both components (synchronicity)
  • Microbiology: absence of pathogens
  • ⚠️ Note: Utility focuses on combination stability. Exceeding moisture or free salicylic acid indicates risk of rapid tablet degradation during storage. Atorvastatin lactone control is important as lactone form has different PK and toxicity compared to active salt. Dissolution synchronicity ensures patient receives both therapeutic effects simultaneously.
Limits stated in the description must be verified against the current approved specification, pharmacopoeial monograph and registration dossier before production use.

5. URS — user requirements

IDRequirementCriticalityAcceptance criterion
URS-001The system shall accept an input.csv file for Atorvastatin Aspirin with the exact columns listed in the “Input data contract” section.HighA file with the correct header is processed without manual editing; missing mandatory columns produce FAIL/import error.
URS-002The system shall support execution without arguments in demo mode and execution with input.csv output.json for user data.MediumBoth execution scenarios produce a predictable result or clear diagnostic error.
URS-003The system shall perform rule-based controls for: assay / content, dissolution / disintegration, microbiology and pathogens, heavy metals / elemental impurities.HighEach controlled parameter receives a status and message; the result does not depend on hidden Excel formulas or ML.
URS-004The system shall preserve traceability between batch/lot, source values, applied rules and final verdict.HighOutput includes batch identifier, source values, parameter statuses and critical findings.
URS-005The system shall generate machine-readable output.json for LIMS/ELN/MES, batch record and QA/QC review.HighJSON contains overall status, check array, warnings, failures and source-file reference.
URS-006The system shall support use in the client validation package: URS/FS, IQ/OQ preparation, installation and operational scenario checks.HighThe document, test scenarios and reproducible CSV/JSON flow are suitable for audit and internal approval.
URS-007The system shall clearly separate technical data errors from specification nonconformities.MediumSchema/type errors are not mixed with pharmacopoeial deviations and are reported separately.

6. input.csv data contract

The source of truth for the input schema is the actual input.csv header. Column names are technical identifiers and are not translated.

#ColumnTypeUnitDescriptionSampleControl rule
1BatchNumberidentifieras specifiedBatch NumberATO-ASP-2026-001mandatory field; used for batch/lot traceability
2Atorvastatin_Content_Percentdecimal%Atorvastatin Content %99.2numeric value; compared with assay/purity limit from specification or method
3Atorvastatin_Lactone_Percentdecimal%Atorvastatin Lactone %0.15mandatory numeric value; rule comparison is performed by the utility
4Atorvastatin_Other_Impurities_Percentdecimal%Atorvastatin Other Impurities %0.2mandatory numeric value; rule comparison is performed by the utility
5Aspirin_Content_Percentdecimal%Aspirin Content %98.8numeric value; compared with assay/purity limit from specification or method
6Free_Salicylic_Acid_Percentdecimal%Free Salicylic Acid %0.04mandatory numeric value; rule comparison is performed by the utility
7Aspirin_Other_Impurities_Percentdecimal%Aspirin Other Impurities %0.15mandatory numeric value; rule comparison is performed by the utility
8Total_Impurities_Percentdecimal%Total Impurities %0.5mandatory numeric value; rule comparison is performed by the utility
9Loss_On_Drying_Percentdecimal%Loss On Drying %0.6mandatory numeric value; rule comparison is performed by the utility
10Dissolution_Atorvastatin_Percentdecimal%Dissolution Atorvastatin %92.0numeric value; dissolution/disintegration profile checked according to method
11Dissolution_Aspirin_Percentdecimal%Dissolution Aspirin %94.5numeric value; dissolution/disintegration profile checked according to method
12Weight_Variation_RSDdecimalas specifiedWeight Variation RSD1.2mandatory numeric value; rule comparison is performed by the utility
13Friability_Percentdecimal%Friability %0.3mandatory numeric value; rule comparison is performed by the utility
14Heavy_Metals_ppmdecimalppmHeavy Metals ppm8numeric value; checked as elemental/metal impurity
15Microbial_Count_TAMCdecimalas specifiedMicrobial Count TAMC40numeric value; compared with microbiological limits
16Microbial_Count_TYMCdecimalas specifiedMicrobial Count TYMC10numeric value; compared with microbiological limits
17EColi_Detectedboolean / flag0/1EColi Detected0valid flag required; prohibited organisms and growth are normally expected as 0 / absent
18Salmonella_Detectedboolean / flag0/1Salmonella Detected0valid flag required; prohibited organisms and growth are normally expected as 0 / absent

CSV example

BatchNumber,Atorvastatin_Content_Percent,Atorvastatin_Lactone_Percent,Atorvastatin_Other_Impurities_Percent,Aspirin_Content_Percent,Free_Salicylic_Acid_Percent,Aspirin_Other_Impurities_Percent,Total_Impurities_Percent,Loss_On_Drying_Percent,Dissolution_Atorvastatin_Percent,Dissolution_Aspirin_Percent,Weight_Variation_RSD,Friability_Percent,Heavy_Metals_ppm,Microbial_Count_TAMC,Microbial_Count_TYMC,EColi_Detected,Salmonella_Detected
ATO-ASP-2026-001,99.2,0.15,0.2,98.8,0.04,0.15,0.5,0.6,92.0,94.5,1.2,0.3,8,40,10,0,0

7. FS — functional specification

IDFunctionImplementation description
FS-001CLI entry pointThe executable AtorvastatinAspirinQualityChecker.exe supports demo mode and input.csv output.json processing mode.
FS-002CSV parserThe import module reads CSV, validates header, column presence/order, value count and encoding. Decimal values are expected with a dot separator.
FS-003Field conversionEach column is converted to the expected type: identifier, text, decimal number, date/time or boolean flag.
FS-004Domain rule engineFor Atorvastatin Aspirin, explicit rules are applied: range, minimum, maximum, absence of prohibited flag, data completeness or calculation-based check.
FS-005Criticality handlingCritical violations produce FAIL; non-critical deviations and incomplete data produce WARNING; full conformance produces PASS.
FS-006JSON writeroutput.json stores overall status, per-parameter results, source values, warnings, failures and diagnostic messages.
FS-007Integration contractThe CSV → JSON format is stable for invocation from LIMS/ELN/MES, scheduled task or wrapper service.
FS-008Error handlingSchema error, missing file, non-numeric value or JSON write failure returns diagnosable error without silent PASS.

8. output.json contract

The output file must be suitable for automated processing, audit review and correlation with the source input.csv row.

{
  "utility": "AtorvastatinAspirinQualityChecker",
  "api": "Atorvastatin Aspirin",
  "batchNumber": "ATO-ASP-2026-001",
  "overallStatus": "PASS|WARNING|FAIL",
  "checkedAtUtc": "2026-05-18T00:00:00Z",
  "checks": [
    {
      "parameter": "BatchNumber",
      "value": "ATO-ASP-2026-001",
      "unit": "as specified",
      "status": "PASS|WARNING|FAIL",
      "message": "Rule-based check result"
    },
    {
      "parameter": "Atorvastatin_Content_Percent",
      "value": "99.2",
      "unit": "%",
      "status": "PASS|WARNING|FAIL",
      "message": "Rule-based check result"
    },
    {
      "parameter": "Atorvastatin_Lactone_Percent",
      "value": "0.15",
      "unit": "%",
      "status": "PASS|WARNING|FAIL",
      "message": "Rule-based check result"
    },
    {
      "parameter": "Atorvastatin_Other_Impurities_Percent",
      "value": "0.2",
      "unit": "%",
      "status": "PASS|WARNING|FAIL",
      "message": "Rule-based check result"
    },
    {
      "parameter": "Aspirin_Content_Percent",
      "value": "98.8",
      "unit": "%",
      "status": "PASS|WARNING|FAIL",
      "message": "Rule-based check result"
    },
    {
      "parameter": "Free_Salicylic_Acid_Percent",
      "value": "0.04",
      "unit": "%",
      "status": "PASS|WARNING|FAIL",
      "message": "Rule-based check result"
    },
    {
      "parameter": "Aspirin_Other_Impurities_Percent",
      "value": "0.15",
      "unit": "%",
      "status": "PASS|WARNING|FAIL",
      "message": "Rule-based check result"
    },
    {
      "parameter": "Total_Impurities_Percent",
      "value": "0.5",
      "unit": "%",
      "status": "PASS|WARNING|FAIL",
      "message": "Rule-based check result"
    }
  ],
  "criticalFindings": [],
  "sourceFile": "input.csv"
}

9. OQ/PQ test scenarios

IDScenarioExpected result
TC-001Valid CSV with expected header and sample rowAll rows are processed; output contains PASS/WARNING/FAIL and parameter-level detail.
TC-002A mandatory input.csv column is missingImport is rejected or the row receives FAIL with schema reference.
TC-003A numeric field contains text or a blank valueType conversion error is recorded; the result is not hidden as PASS.
TC-004A parameter is outside specification or critical limitCritical parameters produce FAIL; non-critical deviations produce WARNING according to the rule.
TC-005Positive pathogen/microbiological flag or microbiological limit excursionCritical FAIL is produced with the offending parameter.
TC-006Insufficient dissolution or excessive disintegration timeFAIL/WARNING is produced according to method criticality.

10. QA/QC, CSV and change control

  • Before production use, the client records executable version, checksum, specification/monograph version, test CSV, expected JSON and IQ/OQ results.
  • Column names must not be changed without updating the validator and test scenarios.
  • The source CSV, output.json and utility version should be stored together as an evidence package.
  • Any change in control rules must go through change control and repeated OQ scenario verification.

Included in packages

Cardiology QC Suite

QC package for cardiology medicines: antihypertensives, anticoagulants, antiplatelets, lipid-lowering and antiarrhythmic medicines plus supporting QC checks.

Open

Global API & Biosimilars QC Suite

Package for high-demand global APIs, generics and biosimilars, including fixed-dose combinations and biological products.

Open

Rheumatology QC Suite

QC package for rheumatology: NSAIDs, glucocorticoids, methotrexate, biologics and supporting impurity/potency checks.

Open