generation run 2026-05-09
69 min completedmodel pipeline-v5plan not recordedrun/99c429a6…Selection
Verification
- record
- seen / partial
- working
The model's own caveats
- taper_protocol_proposed
- note
- note
Reproduce
- inputs
- 38 source keys (listed under Sources)
- plan
- not recorded — template version, prompt hash and git SHA are written from 2026-09 onward
- model
- pipeline-v5
- streams
- none — agent transcripts are persisted from 2026-09 onward
20 searches — query, source, results, what was kept and why
| # | source | query | seen | kept | rationale |
|---|---|---|---|---|---|
| 1 | PubMed | lorazepam pharmacology mechanism GABA receptor binding affinity | 1 | — | — |
| 2 | PubChem | lorazepam | 1 | 1 | Primary chemical identity verification |
| 3 | PubMed | lorazepam pharmacokinetics bioavailability half-life metabolism | 10 | 1 | PMID 6133404 directly reports lorazepam IV/IM pharmacokinetics: t1/2 14.1 hrs, Vd 1.24 L/kg, IM bioavailability 88.8% |
| 4 | PubMed | Greenblatt lorazepam pharmacokinetics plasma distribution elimination | 7 | 6 | Greenblatt series is definitive source for lorazepam pharmacokinetics in humans |
| 5 | OpenAlex | lorazepam benzodiazepine pharmacology clinical | 10 | 2 | PADIS guidelines and AES status epilepticus guidelines directly reference lorazepam clinical use |
| 6 | PubMed | lorazepam status epilepticus treatment efficacy | 9 | 4 | Evidence base for lorazepam in status epilepticus |
| 7 | PubMed | lorazepam GABA-A receptor binding affinity benzodiazepine site | 9 | 2 | Directly study lorazepam effects on GABA-A receptor chloride channel coupling during tolerance |
| 8 | PubMed | benzodiazepine tolerance dependence mechanism GABA receptor downregulation | 7 | 3 | Molecular mechanisms of BZD tolerance relevant to lorazepam dependence section |
| 9 | PubMed | lorazepam amnestic anterograde amnesia memory impairment cognitive effects | 2 | 2 | — |
| 10 | PubMed | lorazepam pregnancy teratogenicity fetal risk neonatal | 1 | 1 | — |
| 11 | WebSearch | lorazepam scheduling legal status UK US Canada Australia | 10 | 2 | — |
| 12 | PubChem REST API | — | 1 | 1 | — |
| 13 | PubMed | lorazepam GABAA subunit selectivity alpha1 alpha2 | 8 | 4 | — |
| 14 | WebSearch | lorazepam history discovery synthesis Wyeth Laboratories approval FDA 1977 | 10 | 2 | — |
| 15 | PubMed | lorazepam versus midazolam RAMPART prehospital status epilepticus | 2 | 1 | — |
| 16 | StatPearls/NCBI | — | 1 | 1 | — |
| 17 | PubMed | benzodiazepine withdrawal treatment diazepam taper discontinuation | 8 | 1 | — |
| 18 | PubMed | lorazepam alcohol withdrawal delirium treatment | 8 | 3 | — |
| 19 | PubMed | lorazepam propylene glycol toxicity ICU continuous infusion | 4 | 2 | — |
| 20 | ClinicalTrials.gov | lorazepam anxiety treatment | 10 | 2 | — |
224 claims by section — every cited sentence, checked against its source
pharmacology56 · 2 ok
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Lorazepam is a positive allosteric modulator (PAM) of ionotropic gaba-a-receptor (gaba type A) receptorssupported
Reviews GABA-A receptor subunit pharmacology; α1 mediates sedation/amnesia, α2 mediates anxiolysis, α subunits involved in anticonvulsant activity; 1,4-BZDs like clonazepam compared to 1,5-BZD clobazam 11599020-000000000-00000
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Each α subunit mediates distinct pharmacological effects: α1 subunits contribute to sedation, hypnosis, anterograde amnesia, and anticonvulsant activity; α2 and α3 subunits mediate anxiolysis and muscle relaxation; α5 subunits modulate learning and memory.supported
α1 mediates sedation/amnesia, α2 mediates anxiolysis, α subunits involved in anticonvulsant activity 11599020-000000000-00000
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safety54 · 5 ok
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Third-trimester and peripartum use is associated with "floppy infant syndrome" (neonatal hypotonia, respiratory depression, reluctance to suck, apneic spells) and neonatal withdrawal symptoms persisting hours to months after birthsupported
late trimester use associated with floppy infant syndrome and neonatal withdrawal pmid:7881198
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Rebound anxiety and insomnia following discontinuation — even after short-term therapeutic use — are well-documented and contribute to the cycle of dependence.supported
management requires gradual tapering with long-acting BZD ijms27031430
Tolerance develops within days of continuous use for the anxiolytic, anticonvulsant, and sedative effects of lorazepampartially supported
prolonged use causes tolerance via GABA-A subunit downregulation and compensatory glutamatergic sensitization ijms27031430
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Standard management involves substitution with a long-acting benzodiazepine (typically Diazepam) and gradual dose tapersupported
management requires gradual tapering with long-acting BZD ijms27031430
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Pregnancy, especially first and third trimester (FDA Category D — fetal risk documented)partially supported
late trimester use associated with floppy infant syndrome and neonatal withdrawal pmid:7881198
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summary26 · 2 ok
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Level A evidence supports IV lorazepam as first-line treatment for convulsive status epilepticus, and the landmark PHTSE trial demonstrated superiority over placebo for prehospital seizure terminationsupported
IM midazolam, IV lorazepam, IV diazepam and IV phenobarbital established as efficacious for SE (Level A). 1535-7597-16.1.48
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Co-administration with opioids carries an FDA Black Box Warning: concurrent benzodiazepine–opioid use increases overdose mortality by 40–334%. tolerance to anxiolytic and anticonvulsant effects develops within days of continuous use, driven by GABA-A receptor uncoupling and compensatory glutamatergic sensitizationpartially supported
prolonged use causes tolerance via GABA-A subunit downregulation and compensatory glutamatergic sensitization ijms27031430
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neuroscience22 · 3 ok
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(5) Compensatory glutamatergic sensitization: As a homeostatic counterregulation to sustained GABAergic enhancement, excitatory glutamatergic systems are upregulated. This glutamatergic rebound-effect contributes to the hyperexcitability observed during withdrawal, including seizure susceptibility.supported
prolonged use causes tolerance via GABA-A subunit downregulation and compensatory glutamatergic sensitization ijms27031430
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(2) α1 subunit downregulation: Sustained benzodiazepine exposure activates L-type voltage-gated calcium channels, triggering a PKA/CREB-ICER signaling cascade that downregulates transcription of the GABA-A α1 subunit.partially supported
prolonged use causes tolerance via GABA-A subunit downregulation and compensatory glutamatergic sensitization ijms27031430
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(4) PLCδ/Ca²⁺/calcineurin-mediated receptor internalization: GABA-A receptors undergo calcineurin-dependent endocytosis and inhibitory synapse disassembly via the PLCδ/Ca²⁺ signaling pathway.supported
Prolonged diazepam exposure disrupts inhibitory GABAergic synapses via GABAR internalization through PLCδ/Ca2+/calcineurin pathway s41380-018-0100-y
clinical-evidence18 · 1 ok
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IV lorazepam holds Level A evidence as an established first-line treatment for adult convulsive status epilepticus (SE), per American Epilepsy Society guidelines.supported
IM midazolam, IV lorazepam, IV diazepam and IV phenobarbital established as efficacious for SE (Level A). 1535-7597-16.1.48
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pharmacokinetic-detail16 · 0 ok
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history10 · 1 ok
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The 2001 Prehospital Treatment of Status Epilepticus (PHTSE) trial, published in the New England Journal of Medicine, demonstrated that both lorazepam and diazepam were superior to placebo for prehospital seizure termination, establishing Level A evidence for IV lorazepam in this indicationsupported
IM midazolam, IV lorazepam, IV diazepam and IV phenobarbital established as efficacious for SE (Level A). 1535-7597-16.1.48
receptor-pharmacology10 · 0 ok
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comparative-pharmacology8 · 0 ok
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