modelVenlafaxine
Extends from Pharmacolibrary.Drugs.ATC.N.N06AX16.
Information
| name: | Venlafaxine | |
| ATC code: | N06AX16 | route: | oral |
| compartments: | 2 | |
| dosage: | 75 | mg |
| volume of distribution: | 7.5 | L |
| clearance: | 1.02 | L/h/kg |
| other parameters in model implementation | ||
Venlafaxine is a serotonin-norepinephrine reuptake inhibitor (SNRI) used primarily to treat major depressive disorder, generalized anxiety disorder, social anxiety disorder, and panic disorder. It is an approved medication and is widely used in clinical practice.
Pharmacokinetics
Pharmacokinetic parameters derived from healthy adult volunteers after single oral dose administration.
References
Fukuda, T, et al., & Azuma, J (2000). The impact of the CYP2D6 and CYP2C19 genotypes on venlafaxine pharmacokinetics in a Japanese population. European journal of clinical pharmacology 56(2) 175–180. DOI:10.1007/s002280050737 PUBMED:https://pubmed.ncbi.nlm.nih.gov/10877013
Lindh, JD, et al., & AL-Shurbaji, A (2003). Effect of ketoconazole on venlafaxine plasma concentrations in extensive and poor metabolisers of debrisoquine. European journal of clinical pharmacology 59(5-6) 401–406. DOI:10.1007/s00228-003-0627-x PUBMED:https://pubmed.ncbi.nlm.nih.gov/12898080
McGrane, IR, et al., & Munjal, RC (2021). Roux-en-Y Gastric Bypass and Antipsychotic Therapeutic Drug Monitoring: Two Cases. Journal of pharmacy practice 34(3) 503–506. DOI:10.1177/0897190020905467 PUBMED:https://pubmed.ncbi.nlm.nih.gov/32067562
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.Volume | Vdp (from PK_2C) | VdpPerKg*weight | Volume of distribution (m3) |
| Modelica.Units.SI.SpecificVolume | VdpPerKg (from PK_2C) | 0.9 | Volume of distribution peripheral(l/kg) |
| Pharmacolibrary.Types.Clearance | k12 (from PK_2C) | 1 | intercompartmental C-P clearance |
| Pharmacolibrary.Types.Clearance | k21 (from PK_2C) | 1 | intercompartmental P-C clearance |
| Pharmacolibrary.Types.TransferRate | ka (from PK_2C_enteral) | 0.016666666666666666 | first order absorption rate |
| Modelica.Units.SI.Time | Tlag (from PK_2C_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) | ||
| Interfaces.ConcentrationPort_b | peripheralCPort (from PK_2C) | ||
| Pharmacolibrary.Types.ConcentrationOutput | C_peripheral1 (from PK_2C) |
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 | |
| Pharmacolibrary.Pharmacokinetic.TransferFirstOrderNonSym | transfer (from PK_2C) | ||
| Pharmacolibrary.Pharmacokinetic.NoPerfusedTissueCompartment | peripheral (from PK_2C) |
Revisions
- 06/2025 Tomas Kulhanek, generated model from data extracted from PUBMED, DrugBank and LLM(GPT4.1)