modelC08GA01
Extends from Pharmacokinetic.Models.PK_2C_enteral.
Information
| name: | NifedipineAndDiuretics | |
| ATC code: | C08GA01 | route: | oral |
| compartments: | 2 | |
| dosage: | 20 | mg |
| volume of distribution: | 0.62 | L |
| clearance: | 0.58 | L/h/kg |
| other parameters in model implementation | ||
This combination consists of nifedipine, a dihydropyridine calcium channel blocker that causes vasodilation and is mainly used for treating hypertension and angina, together with a diuretic (thiazide or thiazide-like), used to lower blood pressure by promoting renal excretion of sodium and water. The combination is approved for the treatment of hypertension and is currently in clinical use.
Pharmacokinetics
Estimated pharmacokinetic parameters for adults with hypertension treated with oral nifedipine in combination with diuretics, as direct published models or combination PK data with diuretics are unavailable. PK parameters are based on established PK data for nifedipine monotherapy, assuming no substantial PK drug-drug interaction with most thiazide diuretics.
References
Langtry, HD, & Markham, A (1997). Lisinopril. A review of its pharmacology and clinical efficacy in elderly patients. Drugs & aging 10(2) 131–166. DOI:10.2165/00002512-199710020-00006 PUBMED:https://pubmed.ncbi.nlm.nih.gov/9061270
Hong, X, et al., & Xu, X (2007). Genetic polymorphisms of the urea transporter gene are associated with antihypertensive response to nifedipine GITS. Methods and findings in experimental and clinical pharmacology 29(1) 3–10. DOI:10.1358/mf.2007.29.1.1063490 PUBMED:https://pubmed.ncbi.nlm.nih.gov/17344938
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)