modelValsartanAndDiuretics
Extends from Pharmacolibrary.Drugs.ATC.C.C09DA03.
Information
| name: | ValsartanAndDiuretics | |
| ATC code: | C09DA03 | route: | oral |
| compartments: | 1 | |
| dosage: | 160 | mg |
| volume of distribution: | 17 | L |
| clearance: | 2 | L/h |
| other parameters in model implementation | ||
Valsartan is an angiotensin II receptor blocker (ARB) used in combination with diuretics such as hydrochlorothiazide for the treatment of hypertension and heart failure. The combination provides improved blood pressure control through complementary mechanisms — valsartan inhibits the renin-angiotensin system while the diuretic decreases blood volume by increasing urine output. This combination is widely approved and currently used for hypertension management.
Pharmacokinetics
Estimated values for a typical healthy adult population after oral administration of valsartan/hydrochlorothiazide fixed-dose combination. No direct published population PK studies on the fixed combination product found. Typical parameters are based on separate reported values for valsartan given orally. Hydrochlorothiazide pharmacokinetics are not included.
References
Ngo, L, et al., & Lee, YB (2018). Effects of hydrochlorothiazide and amlodipine on single oral dose pharmacokinetics of valsartan in healthy Korean subjects: Population model-based approach. European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences 118 154–164. DOI:10.1016/j.ejps.2018.03.031 PUBMED:https://pubmed.ncbi.nlm.nih.gov/29604332
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)