modelN03AX11
Extends from Pharmacokinetic.Models.PK_1C_enteral.
Information
| name: | Topiramate | |
| ATC code: | N03AX11 | route: | oral |
| compartments: | 1 | |
| dosage: | 100 | mg |
| volume of distribution: | 0.7 | L |
| clearance: | 1.02 | L/h |
| other parameters in model implementation | ||
Topiramate is an anticonvulsant medication primarily used in the treatment of epilepsy and the prevention of migraines. It is approved and widely used today for partial-onset or primary generalized tonic-clonic seizures in adults and children, as well as for migraine prophylaxis.
Pharmacokinetics
Pharmacokinetic parameters from healthy adult subjects following oral administration. Mostly studied in both male and female individuals aged 18-55 years with normal renal function.
References
Elewa, M, et al., & Matar, K (2023). Population Pharmacokinetics of Topiramate in Patients with Epilepsy Using Nonparametric Modeling. Therapeutic drug monitoring 45(6) 797–804. DOI:10.1097/FTD.0000000000001143 PUBMED:https://pubmed.ncbi.nlm.nih.gov/37798835
Jacob, S, & Nair, AB (2016). An Updated Overview on Therapeutic Drug Monitoring of Recent Antiepileptic Drugs. Drugs in R&D 16(4) 303–316. DOI:10.1007/s40268-016-0148-6 PUBMED:https://pubmed.ncbi.nlm.nih.gov/27766590
Jovanović, M, et al., & Miljković, B (2013). Population pharmacokinetics of topiramate in adult patients with epilepsy using nonlinear mixed effects modelling. European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences 50(3-4) 282–289. DOI:10.1016/j.ejps.2013.07.008 PUBMED:https://pubmed.ncbi.nlm.nih.gov/23891703
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)