modelSulfamethoxazole
Extends from Pharmacolibrary.Drugs.ATC.J.J01EC01.
Information
| name: | Sulfamethoxazole | |
| ATC code: | J01EC01 | route: | oral |
| compartments: | 1 | |
| dosage: | 800 | mg |
| volume of distribution: | 1.7 | L |
| clearance: | 0.18 | L/h/kg |
| other parameters in model implementation | ||
Sulfamethoxazole is an antibiotic of the sulfonamide class, commonly used in combination with trimethoprim to treat a wide variety of bacterial infections, including urinary tract infections, bronchitis, and certain types of diarrhea. It acts by inhibiting the bacterial synthesis of dihydrofolic acid. Sulfamethoxazole is generally used in clinical practice today as part of the combination drug cotrimoxazole.
Pharmacokinetics
Pharmacokinetic parameters in healthy adult volunteers after oral administration.
References
Wu, YSS, et al., & Gonzalez, D (2021). External Evaluation of Two Pediatric Population Pharmacokinetics Models of Oral Trimethoprim and Sulfamethoxazole. Antimicrobial agents and chemotherapy 65(7) e0214920–None. DOI:10.1128/AAC.02149-20 PUBMED:https://pubmed.ncbi.nlm.nih.gov/33903114
Autmizguine, J, et al., & Gonzalez, D (2018). Population Pharmacokinetics of Trimethoprim-Sulfamethoxazole in Infants and Children. Antimicrobial agents and chemotherapy 62(1) –. DOI:10.1128/AAC.01813-17 PUBMED:https://pubmed.ncbi.nlm.nih.gov/29084742
Sullins, AK, & Abdel-Rahman, SM (2013). Pharmacokinetics of antibacterial agents in the CSF of children and adolescents. Paediatric drugs 15(2) 93–117. DOI:10.1007/s40272-013-0017-5 PUBMED:https://pubmed.ncbi.nlm.nih.gov/23529866
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)