loxoprofen
Enable an agent to identify loxoprofen, assess the identity and quality of material containing it, and determine which handling or use decisions require formulation-specific evidence.
Bundle → Layer → Finding → Questions Filled
6 bundles · 11 layers · 18 findings · 33 questions
Chemical identity Recognize loxoprofen while preserving distinctions between structure, stereochemistry, and pharmaceutical form.
Parent structure
Establish the molecular entity represented by the registry entry.
Structure-anchored identity
Anchor the entry to a verified structure rather than identifying it solely through a name or formula.
- Which authoritative structure record defines loxoprofen for vr.tr.loxoprofen? definition
- Do the proposed identifiers resolve to the parent acid or to a salt or stereochemically restricted entity? boundary
Salt and stereochemistry
Record chemical-form and stereochemical qualifications without creating duplicate registry concepts.
Qualified material identity
Treat counterion, hydration, and stereochemical composition as explicit identity qualifications for the material being assessed.
- Is this material loxoprofen acid, sodium salt, or sodium hydrate, and what evidence establishes that assignment? definition
- Which stereoisomers and proportions are specified, measured, or left unresolved? measurement
- Does an existing catalogue model already own any of these qualified forms? boundary
Quantity and physical form Make loxoprofen amounts and physical-property observations comparable.
Amount basis
Separate measured material mass from the declared amount of a particular loxoprofen form.
Declared equivalence
Every assay or strength value needs a stated chemical-form basis before conversion or comparison.
- Is the reported amount expressed as parent acid, anhydrous sodium salt, or hydrated material? measurement
- Which verified composition, water correction, and molecular masses justify a proposed conversion? action
Phase and solution behavior
Connect physical observations to the particular loxoprofen form tested.
Conditioned physical properties
Record solid phase, water content, and solubility with their methods and conditions; leave unverified phase assignments unresolved.
- What measurements establish the sample's water content and solid-state form? measurement
- For a reported solubility, what were the chemical form, solvent, pH, temperature, and equilibration conditions? measurement
Analytical quality Assess whether a sample is the declared loxoprofen material and meets its intended specification.
Identity and assay evidence
Bind analytical results to methods, reference materials, and acceptance criteria.
Form-appropriate testing
Select tests and specifications that apply to the declared loxoprofen form and material grade.
- Which monograph or validated specification applies to this loxoprofen material and its intended use? provenance
- What identity and assay results were obtained, using which reference standard and reporting basis? measurement
- Do the results support acceptance, rejection, or continued quarantine? action
Impurities and stability
Distinguish impurities and storage-related changes from acceptable loxoprofen material.
Resolved quality changes
Track identified and unidentified related substances alongside stability evidence for the actual form and container.
- Which impurity signals are identified, how were they assigned, and what concentrations or limits are reported? measurement
- What evidence supports the storage conditions and retest period for this form in this container? provenance
- After a storage excursion, which loxoprofen quality attributes require reassessment? action
Metabolic activation and effect Represent loxoprofen's prodrug relationship and the evidence connecting chemical exposure to pharmacological effects.
Parent-metabolite conversion
Identify the activation product and the biological context in which conversion is demonstrated.
Trans-alcohol activation
Loxoprofen undergoes carbonyl reduction to an active trans-alcohol metabolite; evidence must retain its experimental-system context. [Primary metabolism study](https://pmc.ncbi.nlm.nih.gov/articles/PMC6160907/)
- Which exact metabolite structure and stereochemical designation does the source mean by trans-OH? definition
- Which enzyme, tissue, species, and experimental conditions support the reported conversion? provenance
- Does the analytical method distinguish parent loxoprofen from its alcohol metabolites? measurement
Pharmacological evidence
Keep mechanistic and outcome claims attached to the compound and system actually studied.
Attributed effect
Separate effects measured for parent loxoprofen, isolated metabolites, and administration of a preparation capable of metabolic activation.
- Was the reported cyclooxygenase or prostaglandin effect measured for parent loxoprofen, an identified metabolite, or a metabolizing system? boundary
- Which concentrations, endpoints, controls, and biological system support the effect claim? measurement
Handling and use boundaries Connect substance assessment to material handling and route-specific pharmaceutical evidence.
Material handling
Determine handling requirements for the identified loxoprofen material and its intended operation.
Material-specific controls
Use the applicable safety data and stability information for the actual form, concentration, and physical presentation.
- Which safety data sheet applies to this loxoprofen form and material grade? provenance
- What containment, protective equipment, storage, and disposal requirements apply to the planned weighing or preparation operation? action
Pharmaceutical context
Link clinical-use constraints to the relevant product, route, jurisdiction, and dated evidence.
Route-specific safety
Retain route scope for safety evidence: PMDA's 2016 oral loxoprofen sodium hydrate notice addresses intestinal stenosis and obstruction associated with ulcers. [PMDA safety revision](https://www.pmda.go.jp/files/000219738.pdf)
- Which current product information governs the proposed route and jurisdiction? provenance
- Which contraindications, interactions, and warnings in that information require evaluation in the linked patient or prescribing model? boundary
- What formulation and exposure evidence is needed before applying an oral-product finding to a topical product? boundary
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Check these first
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these check these first hold for the sense of loxoprofen this model covers, and on what evidence? provenance
Kinds and varieties
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these kinds and varieties hold for the sense of loxoprofen this model covers, and on what evidence? provenance
Identifiers and schemes
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these identifiers and schemes hold for the sense of loxoprofen this model covers, and on what evidence? provenance
Real-world use
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these real-world use hold for the sense of loxoprofen this model covers, and on what evidence? provenance
Typical measurements
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these typical measurements hold for the sense of loxoprofen this model covers, and on what evidence? provenance
Failure modes and hazards
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these failure modes and hazards hold for the sense of loxoprofen this model covers, and on what evidence? provenance
Regional variation
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these regional variation hold for the sense of loxoprofen this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of loxoprofen this model covers, and on what evidence? provenance
Classifiers Filled
- Family
- Thing Registry
- Category
- Physical world and living systems
- Entry kind
- thing
- Plane
- PHY
- Domain
- PHY.OBJ
- Other names and narrower kinds
- loxoprofen(1-)
What it is Filled
Loxoprofen is a propionic acid derivative nonsteroidal anti-inflammatory drug that acts mainly through an active trans-alcohol metabolite to inhibit cyclooxygenase-mediated prostaglandin synthesis, producing analgesic, anti-inflammatory and antipyretic effects.
In scope
- Loxoprofen chemical identity and stereochemical specification
- Relationships between the parent acid, sodium salt, and sodium hydrate
- Material composition, assay basis, impurities, and degradation
- Conversion of loxoprofen to its active trans-alcohol metabolite
- Evidence needed to connect substance properties to handling and pharmaceutical use
Out of scope
- Finished tablets, patches, gels, their excipients, and release performance
- Patient diagnosis, prescribing, and individualized dosing
- Manufacturing facilities and detailed synthesis procedures
- Independent models of metabolites and other NSAIDs
- Brand ownership, distribution, and market authorization records
Why it exists Filled
Enable an agent to identify loxoprofen, assess the identity and quality of material containing it, and determine which handling or use decisions require formulation-specific evidence.
Distinguishing features Filled
- Match the molecular structure to loxoprofen; the parent formula C15H18O3 is an identity check but cannot distinguish structural isomers. [NCATS substance record](https://drugs.ncats.io/substance/3583H0GZAP)
- Check explicitly for sodium and hydration state before treating a material as the parent acid; pharmaceutical records identify loxoprofen sodium hydrate as a named ingredient. [PMDA ingredient record](https://www.pmda.go.jp/PmdaSearch/rdDetail/iyaku/1149019F1714_1?user=1)
- Distinguish the parent prodrug from its trans-alcohol metabolite, which is produced through carbonyl reduction. [Primary metabolism study](https://pmc.ncbi.nlm.nih.gov/articles/PMC6160907/)
- Require an explicit stereochemical specification before identifying a stereoisomer-resolved sample with a record that leaves stereochemistry unspecified.
- Distinguish substance quantity from finished-product strength: a sodium hydrate tablet record can express content on an anhydrous basis. [PMDA patient guide](https://www.info.pmda.go.jp/downfiles/guide/ph/450064_1149019F1498_1_00G.pdf)
What robots and AI may and may not do Filled
Must not
- Recommend, dose or adjust loxoprofen for a particular person.
- Advise taking it with other anti-inflammatory drugs.
- Downplay its risks for people with stomach ulcers, kidney disease or late pregnancy.
- Help anyone obtain it where a prescription is required.
Only with a human decision
- Use in children, pregnancy or people with serious illness.
May
- Describe loxoprofen, its uses and warnings from official drug information.
- Remind users to follow the label and to ask a pharmacist about other medicines they take.
- Track stock and expiry in a pharmacy the agent is authorized to manage.
Moral aspects Filled
- Common painkillers are widely used and their risks are often underestimated.
Who is affected
- Patients
- Older people
- Pregnant people
Owners Filled
Steward
The prescribing clinician or pharmacist for each use; medicines regulators authorize the product.
Master systems
- National medicines registers
Links to other meta-models Filled
parent
- Q12140 - registry parent class
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.loxoprofen
- Wikidata: Q2759348 (https://www.wikidata.org/wiki/Q2759348)
Direct properties required Filled
- Chemical identity: Verified molecular structure and identifiers; parent formula C15H18O3
- Chemical form: Parent acid; sodium salt; sodium hydrate with specified hydration; unresolved
- Stereochemical composition: Assigned stereoisomers and their fractions in %; method and uncertainty
- Loxoprofen assay: % mass fraction or mg/g, with parent-acid, anhydrous-salt, or hydrated-form basis
- Water content: % w/w and, when established, mol water/mol compound
- Related substances: Individual impurity identities and concentrations; unidentified peaks; detection limits
- Solid-state form: Experimentally assigned phase or mixture; amorphous; unresolved
- Solubility under specified conditions: mg/mL or mol/L with solvent, pH, temperature, and chemical form
- Metabolic activation: Parent loxoprofen to identified trans-alcohol metabolite, with biological system and evidence
- Material disposition: Unassessed; quarantined; accepted against named specification; rejected; awaiting retest
Recognition required Filled
- Tablets, tape patches or gels labelled with the drug name and strength.
Capabilities and actions required Filled
- Reconcile a substance label or analytical record with loxoprofen identity while retaining salt and stereochemical distinctions.
- Convert quantities between declared chemical-form bases when composition and hydration are established.
- Select identity, assay, water, and impurity tests appropriate to the declared loxoprofen form.
- Assess a material against a named specification and flag missing evidence before release.
- Trace pharmacological claims to the parent compound, active metabolite, and experimental system.
- Locate the applicable product information before supporting a route-specific pharmaceutical-use decision.
Hazards and failure modes required Filled
- Can cause stomach bleeding and kidney problems.
- Combining with other anti-inflammatory drugs raises the risk of harm.
Standards and interfaces required Filled
- The Anatomical Therapeutic Chemical classification, maintained by the WHO Collaborating Centre for Drug Statistics Methodology, classifies loxoprofen as M01AE17 within propionic acid derivatives.
Context of use required Filled
- Loxoprofen is encountered in pharmaceutical materials and medicines used for pain, inflammation and fever where authorised.
- Analytical and manufacturing work distinguishes the parent compound, its stereoisomers, salts and formulated products.
Sources Filled
- Wikidata item Q2759348: loxoprofen - identity and sense of the item
- Wikipedia: Loxoprofen - general description of the item
Open questions
- Does the existing Vercy catalogue already cover loxoprofen or its pharmaceutical forms, and which model should be the single source of truth?
- Which authoritative identity record and stereochemical convention should define the registry entry's exact chemical scope?
- Which current monographs govern relevant loxoprofen forms, including assay basis, hydration, stereochemical requirements, and impurity limits?
- Which primary measurements establish form-specific solubility, solid phases, degradation pathways, and storage limits?
- Which human evidence resolves stereoisomer-specific activation and parent-versus-metabolite exposure across oral and topical formulations?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q2759348/spec.json