modelBetamethasone
Extends from Pharmacolibrary.Drugs.ATC.D.D07XC01.
Information
| name: | Betamethasone | |
| ATC code: | D07XC01 | route: | intramuscular |
| compartments: | 2 | |
| dosage: | 6 | mg |
| volume of distribution: | 1.61 | L |
| clearance: | 0.13 | L/h/kg |
| other parameters in model implementation | ||
Betamethasone is a synthetic glucocorticoid corticosteroid with potent anti-inflammatory and immunosuppressive properties. It is used in a range of dermatological, rheumatic, and allergic conditions, as well as for fetal lung maturation in preterm labor. It is an approved and widely used medication today.
Pharmacokinetics
Model parameters are representative for healthy adult volunteers after intramuscular injection of betamethasone phosphate and betamethasone acetate combination, based on typical clinical dosage.
References
Schoenmakers, S, et al., & Koch, BCP (2025). Pharmacokinetics of betamethasone in pre-eclampsia: An in vivo and ex vivo study. British journal of clinical pharmacology None –. DOI:10.1002/bcp.70035 PUBMED:https://pubmed.ncbi.nlm.nih.gov/40083164
Krzyzanski, W, et al., & Jusko, WJ (2021). Population pharmacokinetic modeling of intramuscular and oral dexamethasone and betamethasone in Indian women. Journal of pharmacokinetics and pharmacodynamics 48(2) 261–272. DOI:10.1007/s10928-020-09730-z PUBMED:https://pubmed.ncbi.nlm.nih.gov/33389521
Krzyzanski, W, et al., & Jusko, WJ (2021). Population pharmacodynamic modeling of intramuscular and oral dexamethasone and betamethasone effects on six biomarkers with circadian complexities in Indian women. Journal of pharmacokinetics and pharmacodynamics 48(3) 411–438. DOI:10.1007/s10928-021-09755-y PUBMED:https://pubmed.ncbi.nlm.nih.gov/33954911
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 |
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)