What industrial and occupational settings create methanol exposure risk, what is the ADH-formate metabolic pathway that makes methanol uniquely toxic, and why does symptom onset have a 12–24 hour latency?

Methanol (CH₃OH; CAS 67-56-1; MW 32.04 g/mol; bp 64.7°C) is a colorless, flammable alcohol with a mild, slightly sweetish odor similar to ethanol. It is fully miscible with water and most organic solvents. Methanol is widely used as an industrial solvent, chemical feedstock, and fuel — and unlike most industrial chemicals where the chemical itself is directly toxic, methanol's hazard is entirely due to its metabolic conversion to toxic intermediates. This metabolic latency explains why methanol poisoning is insidious and frequently misdiagnosed. Industrial and occupational sources: 1. Solvent use in manufacturing: • Paints, coatings, adhesives, and printing inks: methanol is a common solvent in these industries; paint strippers, lacquer thinners, and shellac often contain 50–100% methanol • Laboratory solvent: methanol is used as HPLC mobile phase, cleaning solvent, and reaction solvent; labs routinely have large quantities • Plastics and resins manufacturing: formaldehyde synthesis (methanol oxidation over silver catalyst) is the primary industrial route; methanol-contaminated areas 2. Fuel applications: • Racing fuel and additives: methanol is used as racing fuel (Indy car, sprint cars) and in fuel additives; workers in motorsport maintenance can have significant dermal and inhalation exposure • Alternative fuel: methanol as motor fuel blend (M15, M85, M100); refueling workers and fuel blend operators • Windshield washer fluid: windshield washer fluids often contain 20–35% methanol; automotive service workers and consumers 3. Methanol in denatured alcohol and industrial alcohol: • Denatured alcohol (industrial alcohol) is ethanol adulterated with methanol (5–15%) to prevent consumption; workers using denatured alcohol as solvent or fuel may be exposed to significant methanol quantities • Illegal alcohol production: distillates from fermenting sources that include pectin-rich fruits produce methanol as a byproduct; methanol poisoning from illicit spirits is a major public health problem globally 4. Biodiesel production: • Methanol is used in the transesterification reaction for biodiesel synthesis (oil + methanol → fatty acid methyl ester + glycerol); biodiesel plants handle large quantities of methanol 5. HPLC and analytical chemistry: • HPLC-grade methanol in chromatography labs; laboratory workers may face chronic low-level inhalation exposure OSHA PEL and exposure limits: • OSHA PEL: 200 ppm 8-hour TWA (skin notation — dermal absorption contributes to dose) • ACGIH TLV: 200 ppm TWA, STEL 250 ppm; skin notation (Skin) • NIOSH IDLH: 6000 ppm (the IDLH/PEL ratio of 30:1 is similar to formaldehyde; suggests relatively low acute respiratory toxicity compared to chronic/metabolic risk) • Note: methanol OSHA PEL is set primarily for CNS effects from high acute inhalation; it does NOT adequately protect against the metabolic formate toxicity pathway which can be triggered by skin absorption or ingestion at concentrations that do not cause acute inhalation symptoms The ADH-formate metabolic pathway — why methanol is dangerous: Methanol itself is a relatively non-toxic compound at the concentrations encountered occupationally. The danger is entirely from its sequential metabolic conversion by two liver enzymes: Step 1: Methanol → Formaldehyde (via alcohol dehydrogenase, ADH) • ADH converts methanol to formaldehyde (HCHO) • This is the rate-limiting step in methanol metabolism • ADH has ~10–20× higher affinity for ethanol than methanol; this is the basis for the ethanol antidote strategy • Rate of this step determines the latency period Step 2: Formaldehyde → Formate (via aldehyde dehydrogenase, ALDH) • ALDH rapidly converts formaldehyde to formate (HCOO⁻) • Formaldehyde itself is toxic but accumulates only transiently — the conversion to formate is rapid • This step is NOT the rate-limiting step Step 3: Formate — the toxic endpoint: • Formate (formic acid, HCOOH; pKa 3.75) is the primary toxic metabolite • At physiological pH, formate exists as the formate anion (HCOO⁻) • Formate mechanism of toxicity: formate is a potent inhibitor of cytochrome c oxidase (CcO, Complex IV of the mitochondrial electron transport chain) • CcO is the terminal electron acceptor in oxidative phosphorylation; formate binds to the Fe³⁺ center of CcO (similar to cyanide), blocking electron transfer and stopping ATP synthesis • Cellular ATP depletion is the common endpoint: without ATP, cells die Why the optic nerve is specifically targeted: • The optic nerve has an extraordinarily high metabolic demand (rich in mitochondria) and very limited capacity for anaerobic glycolysis backup • Formate-induced CcO inhibition → optic nerve ATP depletion → optic papillitis (inflammation of the optic disc) → axonal degeneration → permanent blindness • Optic nerve damage is specific to methanol (not ethanol, not ethylene glycol) due to formate's selective CcO inhibition; clinically called 'methanol optic neuropathy' • Symptoms: 'snowfield' or 'whiteout' visual disturbances, blurred vision, photophobia → central scotoma → permanent visual field loss → complete blindness • Ophthalmoscopy: optic disc edema (papilledema-like appearance), hyperemic optic disc, retinal edema Anion gap metabolic acidosis — the biochemical signature: • Formate accumulation causes anion gap metabolic acidosis (AGMA): formate is an acid that dissociates to H⁺ + HCOO⁻; the formate anion accumulates in blood • Normal anion gap = Na⁺ − [Cl⁻ + HCO₃⁻] = 8–12 mEq/L • In methanol poisoning: anion gap typically >20–30 mEq/L • The 'osmol gap' (measured osmolality − calculated osmolality) is elevated early when methanol is still present but metabolized later; formate gap = anion gap − lactate • Lactate is NOT significantly elevated in methanol poisoning (unlike cyanide poisoning); formate IS elevated • Osmol gap closes as methanol is metabolized to formate; anion gap widens simultaneously (inverse relationship over time) Latency period — 12–24 hours: • The 12–24 hour latency between methanol ingestion/inhalation/skin absorption and severe symptoms reflects the time required for ADH to convert methanol to formate to toxic concentrations • Critical factor: concurrent ethanol ingestion dramatically extends the latency period (ethanol competes for ADH → slows methanol metabolism → extends latency to 36–72h) • This latency means: a worker exposed to significant methanol at the end of a Friday shift and who also had a few drinks with dinner may not develop severe symptoms until Sunday morning • The latency is a failure point: if methanol exposure is not recognized as the cause of a mild headache Friday evening, the opportunity to initiate antidote therapy before formate accumulation is lost

What is the emergency treatment for methanol poisoning, how do fomepizole and ethanol antidotes work, when is hemodialysis indicated, and what first_aid_kit.* namespace fields route AI agents?

Methanol emergency treatment: Step 1 — Recognition: Methanol poisoning should be suspected when a worker presents with: • Visual disturbances: blurred vision, 'snowfield' (white-out) appearance, photophobia — these are CHARACTERISTIC • CNS depression: headache, dizziness, confusion, lethargy • GI symptoms: nausea, vomiting, abdominal pain (from metabolic acidosis) • Anion gap metabolic acidosis on blood gas (pH 20) • Elevated osmol gap on routine labs (osmolality > 10 mOsm/kg above calculated) • Exposure context: paint stripping, laboratory work, denatured alcohol, racing fuel, windshield washer fluid Step 2 — Remove from exposure + first aid: • Remove from methanol atmosphere • 100% O₂ via NRB mask for inhalation exposure (supports tissue oxygenation during formate-induced CcO inhibition) • For skin exposure: copious water flush 15 minutes; remove all contaminated clothing (methanol absorbs through skin at ~0.19 mg/cm²/h through intact skin) • Emergency transport to hospital — do NOT wait for symptoms; the latency means severe poisoning can be developing while the patient feels only mildly ill Step 3 — Laboratory workup at hospital: • Blood methanol level (quantitative; >20 mg/dL = significant; >50 mg/dL = hemodialysis threshold) • Blood gas (pH, pCO₂, HCO₃⁻, calculated anion gap) • Serum osmolality (measured and calculated; osmol gap = measured − [2×Na + glucose/18 + BUN/2.8]) • Formate level (if available; not widely available; >20 mg/dL = severe) • CBC, BMP, lactate • Visual acuity and fundoscopic examination (optic disc edema = severe poisoning requiring urgent treatment) Antidote 1 — Fomepizole (4-methylpyrazole, 4-MP; brand name Antizol): PREFERRED • Mechanism: fomepizole is a potent competitive inhibitor of ADH (Ki ~0.1 µM); it blocks the conversion of methanol to formaldehyde, completely stopping formate production while the patient's kidneys clear the methanol unchanged • Advantages over ethanol: 1. Predictable pharmacokinetics; standard weight-based dosing; no need for blood level monitoring 2. No CNS depression (unlike ethanol, which can mask neurological status changes) 3. No hypoglycemia risk (especially important in pediatric or diabetic patients) 4. Can be administered to a fully conscious and cooperative patient 5. No aspiration risk from oral ethanol in an obtunded patient 6. Fomepizole does NOT require serum level monitoring (ethanol requires level monitoring every 1–2h) • Dosing (FDA-approved 1997): loading dose 15 mg/kg IV over 30 minutes; then 10 mg/kg IV q12h × 4 doses; then 15 mg/kg IV q12h until methanol <20 mg/dL • Key limitation: fomepizole only blocks NEW formate production; it does NOT reverse existing formate accumulation; formate already accumulated must be cleared by endogenous metabolism (folate cycle) or removed by hemodialysis • Fomepizole is commercially available in hospital pharmacies; not typically stocked in first aid kits but should be in any ED formulary handling occupational chemical exposures Antidote 2 — Ethanol: BACKUP if fomepizole unavailable • Mechanism: ethanol is preferentially metabolized by ADH (10–20× higher affinity than methanol); saturating ADH with ethanol prevents methanol metabolism to formaldehyde/formate • Target blood ethanol: 100–150 mg/dL (22–33 mmol/L) — sufficient to fully saturate ADH and block methanol metabolism • Route: IV 10% ethanol in D5W (hospital preparation) or oral ethanol (100-proof spirits if IV unavailable) • Disadvantages: CNS depression complicates neurological monitoring; hypoglycemia (especially in pediatric patients); difficult dosing (must monitor blood ethanol levels every 1–2h); taste/compliance issue with oral route • Context: use ethanol ONLY if fomepizole is not available within 1–2 hours; call Poison Control for guidance on ethanol dosing Folinic acid (leucovorin) — cofactor adjunct: • Formate is metabolized via the folate-dependent pathway to CO₂ and water: HCOO⁻ + THF → 10-formyl-THF → CO₂ + THF (requires 5,10-methyleneTHF reductase and methylene THF reductase) • Folinic acid (5-formyl-THF, leucovorin) is the active cofactor form; supplementation speeds formate oxidation • Standard: folinic acid 1 mg/kg IV (max 50 mg) q4–6h until methanol and formate are cleared; reduces formate half-life • This is an adjunct — NOT a substitute for fomepizole or hemodialysis Hemodialysis — the definitive treatment for severe poisoning: Dialysis indications (EXTRIP guidelines 2015, updated): • Blood methanol level >50 mg/dL (regardless of symptoms) [some centers use >25 mg/dL] • pH <7.15 or bicarbonate <10 mEq/L • Visual symptoms (any visual impairment indicates significant formate accumulation in optic nerve) • Renal failure that prevents endogenous clearance • Hemodynamic instability despite treatment Dialysis mechanism: methanol (MW 32) and formate (MW 46) are both small, water-soluble molecules that are highly dialyzable; high-flux hemodialysis efficiently removes both; clearance rate is ~3–5× endogenous renal clearance first_aid_kit.* namespace field definitions for methanol routing: first_aid_kit.formate_toxicity (boolean — true): • true: methanol poisoning is mediated entirely by formate (the metabolic product, not methanol itself) • Routing consequence: require fomepizole/ethanol antidote reference card; require anion gap metabolic acidosis workup reference; flag: 'methanol is a pro-toxin — block ADH metabolism to prevent formate accumulation' first_aid_kit.adh_inhibition_antidote (string — 'fomepizole_first_ethanol_backup'): • 'fomepizole_first_ethanol_backup': fomepizole is first-line; ethanol is backup if fomepizole unavailable within 1–2h • Routing consequence: require Poison Control card; require antidote availability check (fomepizole at hospital formulary); require ethanol backup instruction if fomepizole not available first_aid_kit.optic_nerve_risk (boolean — true): • true: formate specifically damages the optic nerve (high metabolic demand; CcO inhibition → ATP depletion → axon death → blindness); optic nerve damage may be permanent • Routing consequence: require visual symptom recognition card in kit; flag: any visual disturbance after methanol exposure requires immediate ED evaluation — do NOT wait for lab results first_aid_kit.dialysis_threshold_mg_dl (number — 50): • 50: hemodialysis indicated when blood methanol >50 mg/dL (EXTRIP guideline); also indicated for pH <7.15 or any visual symptoms regardless of methanol level • Routing consequence: require hospital with hemodialysis capability for significant methanol exposure; require immediate methanol blood level on arrival at ED first_aid_kit.latency_hours (number — 12-24): • 12–24 hours: typical symptom onset latency after methanol exposure (longer with concurrent ethanol: up to 36–72h) • Routing consequence: require observation card: 'do not dismiss mild symptoms — severe methanol poisoning can develop 12–24 hours after initial mild presentation'; require employer notification protocol for delayed symptom development first_aid_kit.skin_absorption_risk (boolean — true): • true: methanol is absorbed through intact skin at ~0.19 mg/cm²/h; Viton gloves provide limited protection (prior blog coverage) • Routing consequence: require appropriate glove recommendation (Viton preferred for prolonged exposure); require skin exposure documentation in exposure log alongside inhalation; require skin decontamination protocol AI routing pseudocode for methanol first aid kit: if hazard_includes 'methanol' OR 'methyl_alcohol' OR 'wood_alcohol' OR 'denatured_alcohol' OR 'windshield_washer_fluid_methanol': set formate_toxicity = true set adh_inhibition_antidote = 'fomepizole_first_ethanol_backup' set optic_nerve_risk = true set dialysis_threshold_mg_dl = 50 set latency_hours = '12_to_24' set skin_absorption_risk = true require: antidote reference card (fomepizole/ethanol protocol; Poison Control) require: visual symptom recognition card require: 12–24h observation warning card require: hospital with hemodialysis capability require: 15-min water flush for skin exposure + clothing removal require: 100% O₂ NRB for inhalation flag: 'No symptoms now does NOT mean safe — methanol toxicity develops 12–24h after exposure' flag: 'ANY visual disturbance after methanol exposure = emergency; do not wait for lab results' flag: 'Fomepizole is the specific antidote — confirm hospital formulary availability' flag: 'Skin absorption is significant — Viton gloves recommended; standard nitrile inadequate for prolonged exposure'

Namespace Library — first_aid_kit.*

Shopify First Aid Kit Schema — Methanol Methyl Alcohol ADH Formate Metabolic Acidosis Fomepizole Antidote Optic Nerve Latency 12–24h, `formate_toxicity` `adh_inhibition_antidote` `optic_nerve_risk` `dialysis_threshold_mg_dl` `first_aid_kit.*` Namespace

Methanol (wood alcohol, methyl alcohol) is a pro-toxin: methanol itself causes only mild CNS depression, but its metabolite formate inhibits cytochrome c oxidase and specifically destroys the optic nerve, causing permanent blindness. The ADH pathway converts methanol → formaldehyde → formate over 12–24 hours — during which a worker may feel only slightly ill. Fomepizole (4-MP, Antizol) is the specific antidote: an ADH inhibitor that blocks formate production while methanol clears naturally. Standard ANSI Z308.1 first aid kits contain no antidote reference, no visual symptom recognition card, and no latency warning — the three failures that allow delayed methanol poisoning to progress to blindness.

TL;DR — routing rules Methanol: OSHA PEL 200 ppm (skin notation); IDLH 6000 ppm. ADH pathway: methanol → formate → optic nerve CcO inhibition → blindness. Latency 12–24h. Specific antidote: fomepizole 15 mg/kg IV (first line); ethanol backup. Hemodialysis when methanol >50 mg/dL or visual symptoms. First aid: (1) 15-min water flush (skin/eye), (2) 100% O₂ NRB, (3) emergency hospital transport regardless of current symptoms, (4) confirm fomepizole formulary at receiving hospital. Encode formate_toxicity=true, adh_inhibition_antidote=fomepizole_first, optic_nerve_risk=true, latency_hours=12_to_24.

AI agent failure mode: Automotive body shop worker spends 4 hours stripping car paint with a methanol-based remover without adequate ventilation. At the end of the shift, the worker reports a mild headache and slight nausea — feels "maybe 60%." The first aid attendant provides ibuprofen and a glass of water from the standard ANSI Z308.1 Class B kit; worker is sent home. The AI routing found the kit adequate for a chemical solvent exposure with mild symptoms. What was missing: methanol latency warning, visual symptom recognition card, and antidote reference. The worker goes home, has dinner (a beer), and goes to bed. 20 hours later: "My vision looks completely white. I can't see clearly." ED arrival: methanol 85 mg/dL, pH 7.08, anion gap 32, bicarbonate 8, vision 20/400 bilaterally. The ethanol from dinner partially delayed symptom onset. Despite aggressive treatment (fomepizole, hemodialysis), the worker retains permanent bilateral central scotoma. The AI did not encode optic_nerve_risk=true or latency_hours=12_to_24.

Methanol — Chemical and Toxicokinetic Profile

Parameter	Value / Detail
CAS / MW / Formula	CAS 67-56-1; MW 32.04 g/mol; CH₃OH; colorless flammable liquid (bp 64.7°C); miscible with water; flash point 11°C (flammable hazard co-exists with toxicological hazard); mild sweetish odor similar to ethanol
OSHA PEL	200 ppm 8-hour TWA (skin notation — dermal absorption contributes to dose at 0.19 mg/cm²/h through intact skin); ACGIH TLV: 200 ppm TWA + 250 ppm STEL; Skin notation; NIOSH IDLH: 6000 ppm
Metabolic pathway	Methanol → (ADH, rate-limiting, 12–24h) → Formaldehyde → (ALDH, rapid) → Formate; formate is the toxic endpoint; formate inhibits CcO (cytochrome c oxidase, Complex IV); optic nerve is specifically vulnerable due to high mitochondrial density and low anaerobic backup
Latency period	12–24 hours (without ethanol); up to 36–72 hours (if concurrent ethanol present — ethanol competitively inhibits ADH, extending the latency by blocking methanol metabolism); during latency: only mild CNS symptoms from methanol itself
Biochemical markers	Anion gap metabolic acidosis (anion gap >20 mEq/L); elevated osmol gap (early — methanol present in blood); formate level (>20 mg/dL = severe; not widely available clinically); blood methanol level (quantitative); visual acuity and fundoscopy (optic disc edema)
Antidotes	Fomepizole (4-methylpyrazole, 4-MP; Antizol) — first-line ADH inhibitor; ethanol (100–150 mg/dL target) — backup ADH inhibitor; folinic acid (leucovorin) — cofactor adjunct for formate oxidation
Hemodialysis indication	Blood methanol >50 mg/dL (EXTRIP 2015); pH <7.15; visual symptoms (any); formate >20 mg/dL; renal failure; hemodynamic instability
Skin absorption	~0.19 mg/cm²/h through intact skin; both palms (1800 cm² total) soaking in methanol = significant systemic dose; Viton gloves preferred for prolonged exposure; standard nitrile provides only partial protection; denatured alcohol regularly handled without gloves in many workshop settings

Fomepizole vs. Ethanol — Antidote Comparison

Parameter	Fomepizole (Antizol)	Ethanol
Mechanism	Competitive inhibitor of ADH (Ki ~0.1 µM); 1000× more potent ADH inhibitor than ethanol on molar basis; blocks methanol → formaldehyde step	Preferentially metabolized by ADH (10–20× higher affinity than methanol); saturates ADH; blocks methanol metabolism by competition
CNS effects	None — fomepizole does not cause CNS depression; neurological status monitoring unaffected	CNS depression (sedation, ataxia, respiratory depression); complicates neurological monitoring; risk of aspiration in obtunded patients
Hypoglycemia risk	None	Yes — especially in pediatric patients and diabetics; requires glucose monitoring
Dosing complexity	Weight-based, standardized: 15 mg/kg IV load → 10 mg/kg IV q12h × 4 → 15 mg/kg IV q12h; no level monitoring needed	Requires blood ethanol level monitoring every 1–2h to maintain 100–150 mg/dL; unpredictable elimination kinetics; difficult to maintain therapeutic level
Administration route	IV only (hospital) — not available in the field	IV 10% ethanol in D5W (hospital) or oral 100-proof spirits (emergency field backup)
FDA approval	Approved 1997 for methanol and ethylene glycol poisoning; most hospital pharmacies stock it	Not FDA-approved as an antidote; used off-label; availability variable
When to use ethanol	Only if fomepizole cannot be obtained within 1–2 hours (e.g., rural hospital without formulary)	Backup when fomepizole unavailable; call Poison Control for dosing guidance
Both agents only block	NEW formate production; they do NOT remove formate already accumulated; hemodialysis is needed to remove formate rapidly and reverse existing metabolic acidosis

first_aid_kit.* Namespace Fields for Methanol Routing

Field	Values	Methanol Value	Routing Consequence
`first_aid_kit.formate_toxicity`	true / false	true — methanol's toxicity is entirely mediated by formate (ADH pathway product)	Require antidote reference card (fomepizole/ethanol protocol); require Poison Control card; flag: 'methanol is a pro-toxin — block ADH to prevent formate production'
`first_aid_kit.adh_inhibition_antidote`	fomepizole_first_ethanol_backup / none / specific	fomepizole_first_ethanol_backup — specific antidote exists; not in first aid kit but reference card required	Require fomepizole availability check at receiving hospital; require Poison Control card for ethanol dosing backup; flag: methanol has a SPECIFIC ANTIDOTE (unlike most toxic gas exposures)
`first_aid_kit.optic_nerve_risk`	true / false	true — formate selectively destroys optic nerve; permanent blindness possible	Require visual symptom recognition card in kit: 'any visual blurring, snowfield vision, or photophobia after methanol exposure = EMERGENCY'; require ophthalmologic evaluation at hospital
`first_aid_kit.dialysis_threshold_mg_dl`	numeric (mg/dL)	50 — EXTRIP 2015 threshold; also dialysis for pH <7.15 or any visual symptoms	Require hospital with hemodialysis capability; flag: visual symptoms trigger dialysis regardless of methanol level
`first_aid_kit.latency_hours`	numeric or range	12–24 (up to 36–72 with concurrent ethanol)	Require latency warning card: 'methanol poisoning develops 12–24 HOURS after exposure; mild symptoms now do not indicate safety'; require employer notification protocol for delayed symptom development
`first_aid_kit.skin_absorption_risk`	true / false	true — 0.19 mg/cm²/h through intact skin; Viton preferred; nitrile partially protective	Require glove selection guidance (Viton for prolonged exposure); require skin exposure documentation in exposure log alongside inhalation

Methanol Industrial First Aid Protocol IMMEDIATE FIRST AID: [ ] Remove from methanol atmosphere (100% O₂ NRB for significant inhalation) [ ] Skin exposure: copious water flush × 15 minutes; remove all contaminated clothing [ ] Eye exposure: irrigate × 15 minutes; Morgan lens preferred; pH check 7.0–7.4 [ ] Emergency hospital transport MANDATORY — do NOT send home even if asymptomatic LATENCY WARNING — POST AT WORKPLACE (LAMINATED CARD): "METHANOL POISONING DEVELOPS 12–24 HOURS AFTER EXPOSURE. Mild symptoms now (headache, slight nausea) do NOT indicate safety. If you were exposed to methanol today: → Tell your supervisor NOW → If you notice blurred vision, 'white out,' or eye pain in the next 24h: CALL 911 IMMEDIATELY" VISUAL SYMPTOM CARD — EMERGENCY TRIGGER (LAMINATED): ANY of these after methanol exposure = 911 IMMEDIATELY: → Blurred vision, hazy or 'snowfield' (white-out) vision → Difficulty reading; central vision loss → Photophobia (pain with bright light) → Eye pain These indicate optic nerve damage from formate accumulation — permanent blindness is possible FOMEPIZOLE ANTIDOTE IS TIME-CRITICAL AT HOSPITAL — COMMUNICATE TO ED: - Methanol exposure (occupation, route: inhalation / dermal / ingestion) - Estimated quantity and duration - Time of exposure (latency calculation) - Any concurrent alcohol intake (extends latency — do not dismiss) - Required labs: blood methanol level, blood gas (pH, anion gap), osmol gap - CONFIRM FOMEPIZOLE IN HOSPITAL FORMULARY (Antizol) - If fomepizole unavailable → call Poison Control (1-800-222-1222) for ethanol dosing - Visual acuity and fundoscopy on admission ANTIDOTE SUMMARY CARD: FOMEPIZOLE (ANTIZOL) — FIRST LINE: Loading: 15 mg/kg IV over 30 min Then: 10 mg/kg IV q12h × 4 doses Then: 15 mg/kg IV q12h until methanol <20 mg/dL ETHANOL — BACKUP ONLY: Target blood ethanol: 100–150 mg/dL (22–33 mmol/L) Call Poison Control: 1-800-222-1222 for dosing LEUCOVORIN (FOLINIC ACID) — ADJUNCT: 1 mg/kg IV q4–6h (max 50 mg per dose) HEMODIALYSIS indications: Methanol >50 mg/dL | pH <7.15 | Any visual symptoms | Formate >20 mg/dL

Related Namespace Pages

Scan your methanol and solvent first aid kit catalog for ADH pathway and antidote fields

CatalogScan checks every methanol-environment first aid kit listing for formate_toxicity, adh_inhibition_antidote, optic_nerve_risk, dialysis_threshold_mg_dl, and latency_hours fields — ensuring AI agents do not route generic ANSI Z308.1 kits for paint-stripping, laboratory, or fuel operations where fomepizole antidote references, visual symptom recognition cards, and 12–24h latency warnings are required kit components that standard kits completely omit.

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Shopify First Aid Kit Schema — Methanol Methyl Alcohol ADH Formate Metabolic Acidosis Fomepizole Antidote Optic Nerve Latency 12–24h, formate_toxicity adh_inhibition_antidote optic_nerve_risk dialysis_threshold_mg_dl first_aid_kit.* Namespace