modelNaltrexone
Extends from Pharmacolibrary.Drugs.ATC.N.N07BB04.
Information
| name: | Naltrexone | |
| ATC code: | N07BB04 | route: | oral |
| compartments: | 1 | |
| dosage: | 50 | mg |
| volume of distribution: | 135 | L |
| clearance: | 3.5 | L/min |
| other parameters in model implementation | ||
Naltrexone is an opioid receptor antagonist primarily used in the management of alcohol dependence and opioid dependence. It is an approved medication and acts by blocking the euphoric and sedative effects of opioids, thereby reducing the risk of relapse.
Pharmacokinetics
Pharmacokinetics of naltrexone reported in healthy adult volunteers following a single oral dose.
References
Thigpen, JC, et al., & Harirforoosh, S (2019). Opioids: A Review of Pharmacokinetics and Pharmacodynamics in Neonates, Infants, and Children. European journal of drug metabolism and pharmacokinetics 44(5) 591–609. DOI:10.1007/s13318-019-00552-0 PUBMED:https://pubmed.ncbi.nlm.nih.gov/31006834
Kyhl, LE, et al., & Areberg, J (2016). Population pharmacokinetics of nalmefene in healthy subjects and its relation to μ-opioid receptor occupancy. British journal of clinical pharmacology 81(2) 290–300. DOI:10.1111/bcp.12805 PUBMED:https://pubmed.ncbi.nlm.nih.gov/26483076
(2006). Methylnaltrexone: MNTX. Drugs in R&D 7(6) 374–378. DOI:10.2165/00126839-200607060-00006 PUBMED:https://pubmed.ncbi.nlm.nih.gov/17073520
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)