modelN05BA06
Extends from Pharmacokinetic.Models.PK_1C_enteral.
Information
| name: | Lorazepam | |
| ATC code: | N05BA06 | route: | oral |
| compartments: | 1 | |
| dosage: | 2 | mg |
| volume of distribution: | 1.3 | L |
| clearance: | 1.1 | mL/min/kg |
| other parameters in model implementation | ||
Lorazepam is a short-acting benzodiazepine used primarily to treat anxiety disorders, insomnia, status epilepticus, and as premedication for anesthesia. It has anxiolytic, sedative, anticonvulsant, and muscle relaxant properties. Lorazepam is widely approved and still clinically used today.
Pharmacokinetics
Pharmacokinetic parameters derived from healthy adult volunteers after a single oral dose.
References
Lebrun-Vignes, B, et al., & Chosidow, O (2001). Clinical pharmacokinetics of mizolastine. Clinical pharmacokinetics 40(7) 501–507. DOI:10.2165/00003088-200140070-00002 PUBMED:https://pubmed.ncbi.nlm.nih.gov/11510627
Fleishaker, JC (2000). Clinical pharmacokinetics of reboxetine, a selective norepinephrine reuptake inhibitor for the treatment of patients with depression. Clinical pharmacokinetics 39(6) 413–427. DOI:10.2165/00003088-200039060-00003 PUBMED:https://pubmed.ncbi.nlm.nih.gov/11192474
Stephen, LJ (2003). Drug treatment of epilepsy in elderly people: focus on valproic Acid. Drugs & aging 20(2) 141–152. DOI:10.2165/00002512-200320020-00005 PUBMED:https://pubmed.ncbi.nlm.nih.gov/12534314
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.Mass | weight (from PK_1C) | 75 | patient weight (kg) |
| Modelica.Units.SI.SpecificVolume | VdPerKg (from PK_1C) | 0.9 | Volume of distribution (L/kg) |
| Modelica.Units.SI.MassFraction | F (from PK_1C) | 0.8 | bioavailiability (0-1) |
| Pharmacolibrary.Types.Clearance | Cl (from PK_1C) | 20 | clearance |
| Modelica.Units.SI.Time | adminTime (from PK_1C) | 60 | first administration time (s) |
| Modelica.Units.SI.Time | adminDuration (from PK_1C) | 600 | administration duration (s) |
| Modelica.Units.SI.Time | adminPeriod (from PK_1C) | 8*60*60 | period of administration (default 8 hours)(s) |
| Pharmacolibrary.Types.Mass | adminMass (from PK_1C) | 1000 | administration mass (mg) |
| Integer | adminCount (from PK_1C) | 8 | number of dose administered (1) |
| Pharmacolibrary.Types.Volume | Vd (from PK_1C) | VdPerKg*weight | Volume of distribution (m3) |
| Pharmacolibrary.Types.MassConcentration | Cmin (from PK_1C) | 0.004 | minimal therapeutic range |
| Pharmacolibrary.Types.MassConcentration | Cmax (from PK_1C) | 0.008 | minimal therapeutic range |
| Pharmacolibrary.Types.MassConcentration | Ctox_peak (from PK_1C) | 0.012 | toxicity peak level |
| Pharmacolibrary.Types.MassConcentration | Ctox_trough (from PK_1C) | 0.006 | toxicity trough level |
| Pharmacolibrary.Types.TransferRate | ka (from PK_1C_enteral) | 0.016666666666666666 | first order absorption rate |
| Modelica.Units.SI.Time | Tlag (from PK_1C_enteral) | 600 | delay between oral administration and absorption (default 10min) |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Types.ConcentrationOutput | C_central (from PK_1C) | ||
| Interfaces.ConcentrationPort_b | centralCPort (from PK_1C) |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Pharmacokinetic.NoPerfusedTissueCompartment | central (from PK_1C) | ||
| Pharmacokinetic.ClearanceDrivenElimination | elim (from PK_1C) | ||
| Sources.PeriodicDose | periodicDose (from PK_1C) | ||
| Modelica.Units.SI.Time | t1_2 (from PK_1C) | elimination half-life |
Revisions
- 06/2025 Tomas Kulhanek, generated model from data extracted from PUBMED, DrugBank and LLM(GPT4.1)