{"hq_id":"hq-p-spe-000111","name":"Expired Medication Safety (FDA Expiration, SLEP Data, Potency vs Toxicity)","category":{"primary":"specialized","secondary":"health","tags":["expired medication","expiration date","SLEP","potency","FDA","disposal","drug safety"]},"product_tier":"SPE","overall_risk_level":"low","description":"FDA expiration dates guarantee potency and safety until that date — not that medication becomes dangerous after. DOD/FDA Shelf Life Extension Program (SLEP): tested 3,005 lots of 122 medications — 88% were stable for at least 1 year beyond expiration, many for 5-15 years. Key exceptions: tetracycline (degradation product nephrotoxic — historical concern, debated in modern formulations), nitroglycerin (potency loss critical for angina), insulin (temperature and time sensitive), EpiPen epinephrine (27% potency loss by 4 months past expiration). Liquid formulations degrade faster than solid. Proper disposal: FDA flush list for dangerous meds, DEA take-back for all others.","synthesis":{"derived_risk_level":"insufficient_data","synthesis_confidence":0,"synthesis_method":"none","context_source":null,"compounds_resolved":0,"compounds_total":0,"synthesis_date":"2026-05-09","synthesis_version":"1.2.0","methodology_note":"exposure_modifier and adjusted_magnitude are computed from ALETHEIA-calibrated heuristics (route × duration × frequency multipliers, clamped to [0.5, 1.4]). Multipliers are directionally informed by EPA Exposure Factors Handbook (2011) and CalEPA OEHHA but are not regulatory consensus. See /api/methodology for full disclosure."},"hazard_summary":{"sensitive_populations":"patients relying on critical medications (EpiPen, nitroglycerin, insulin)","overall_risk":"low","primary_concerns":["Most solid medications retain potency well past expiration (SLEP data)","Critical exceptions: EpiPen, insulin, nitroglycerin — potency loss is dangerous","Expired medication disposal: environmental contamination if flushed inappropriately","Child poisoning from improperly stored/disposed expired medications"],"exposure_routes":"Oral (taking expired medication); environmental (improper disposal)"},"exposure":{"routes":["oral"],"contact_types":["oral_direct"],"users":["adult","child"],"duration":"varies","frequency":"event-based","scenarios":["Taking expired medication during emergency when no alternative available","Expired EpiPen: 27% potency loss — may be inadequate for anaphylaxis","Emergency stockpile medication rotation (SLEP data relevant)","Child access to improperly disposed expired medications"],"notes":"SLEP (military program, civilian applicability): tested medications stored in original packaging at controlled conditions. Most oral solid medications (tablets, capsules) retain >90% potency for years past expiration. Critical exceptions: EpiPen (epinephrine degrades — use expired if no alternative during anaphylaxis, but potency uncertain), insulin (temperature-dependent degradation), nitroglycerin (volatile, potency loss dangerous for angina), liquid antibiotics (suspension stability). FDA flush list: specific opioids and other dangerous medications should be flushed if take-back unavailable. Most medications: DEA National Prescription Drug Take-Back Day or pharmacy drop-off."},"consumer_guidance":{"usage_warning":"Most solid oral medications (tablets, capsules) remain effective past expiration — SLEP data shows 88% stable 1+ years. CRITICAL EXCEPTIONS: EpiPen (use expired if no alternative during anaphylaxis, then get new), insulin, nitroglycerin — replace these on schedule. For emergencies: expired medication is better than no medication (except tetracycline — debated). Proper disposal: DEA take-back or pharmacy drop-off. FDA flush list medications: flush if no take-back available.","safer_alternatives":["Rotate medication stockpiles: first-in-first-out","DEA National Prescription Drug Take-Back for disposal","Lock-and-return containers at pharmacies","DisposeRx or Deterra bags (render medications non-retrievable for home disposal)"]},"regulatory":{"applicable_regulations":[{"jurisdiction":"USA","regulation":"FDA Drug Expiration Dating / DEA Disposal Rule","citation":"21 CFR 211.137 (expiration); 21 CFR 1317 (disposal)","requirements":"Manufacturers must prove stability through expiration date. DEA authorizes take-back programs and LE collection. FDA maintains flush list for specific dangerous medications.","compliance_status":null,"effective_date":null,"enforcing_agency":"FDA / DEA","penalties":null,"source_ref":null}],"certifications":[],"labeling":{"required_disclosures":[],"prop65_warning":{"required":null,"chemicals":[],"endpoint":null,"notes":null},"ghs_labeling":{"required":null,"signal_word":null,"pictograms":[],"hazard_statements":[],"notes":null},"hidden_ingredients":{"trade_secret_protected":null,"categories_hidden":[],"estimated_count":null,"known_concerns":null,"notes":null},"notes":null},"recalls":[],"regulatory_gap":null,"notes":null},"lifecycle":{"recyclable":false,"disposal_guidance":"DEA take-back (preferred), pharmacy drop-off, FDA flush list (specific dangerous medications only). Do not flush most medications.","hazardous_waste":true,"expected_lifespan":"1-5_years_labeled"},"formulation":{"form":"varies","key_ingredients":[],"certifications":[]},"materials":{"common":[],"concerning":[],"preferred":[]},"compound_composition":[],"identifiers":{"common_names":["expired medication safety (fda expiration, slep data, potency vs toxicity)"],"aliases":[],"manufacturer":null,"brands":[]},"brand_examples":[{"brand":"CVS Health","manufacturer":"CVS Health","market_position":"mass_market","notable":"Pharmacy offering take-back programs"},{"brand":"Walgreens","manufacturer":"Walgreens Boots Alliance","market_position":"mass_market","notable":"Pharmacy with medication disposal"},{"brand":"Stericycle","manufacturer":"Stericycle","market_position":"professional","notable":"Pharmaceutical waste disposal company"}],"brand_examples_disclaimer":"Representative branded products of this category. Concerning ingredients listed in materials.concerning[] apply to the category, not necessarily to every named brand. Specific formulations vary by SKU and may have changed since this record was written; consult the brand's current ingredient label before drawing brand-level conclusions.","sources":[{"type":"expert_curation","name":"ALETHEIA Safety Database","date":"2026-03-25"},{"type":"regulation","title":"FDA Drug Expiration Dating / DEA Disposal Rule (21 CFR 211.137 (expiration); 21 CFR 1317 (disposal))","jurisdiction":"USA","citation":"21 CFR 211.137 (expiration); 21 CFR 1317 (disposal)","id":"src_fc2d41e1"},{"type":"regulatory","title":"US Food and Drug Administration (FDA)","jurisdiction":"USA","id":"src_82d1cfcd","extraction":"description_reference"}],"meta":{"schema_version":"4.0.0","last_updated":"2026-03-25","timestamp":"2026-05-14T01:23:45.596Z"}}