modelA09AB03
Extends from Pharmacokinetic.Models.PK_1C_enteral.
Information
| name: | HydrochloricAcid | |
| ATC code: | A09AB03 | route: | oral |
| compartments: | 1 | |
| dosage: | 100 | mg |
| volume of distribution: | 1 | L |
| clearance: | 1 | L/min |
| other parameters in model implementation | ||
Hydrochloric acid is a strong inorganic acid used medically as a component of gastric acid in the stomach, which assists in the digestion of food. Historically, dilute hydrochloric acid has been used as a gastric acidifier in conditions of hypochlorhydria or achlorhydria to aid digestion. However, its clinical use as an orally administered drug is now obsolete due to safety concerns and the availability of more effective and safer therapies for gastric acid supplementation. It is not an approved drug for human use today.
Pharmacokinetics
No published pharmacokinetic studies for hydrochloric acid as a drug exist. The following parameters are only estimated, based on general assumptions for a strong acid that is rapidly neutralized or buffered in the stomach after oral administration.
References
Pelfrêne, A, et al., & Le Bot, B (2020). Evaluation of single-extraction methods to estimate the oral bioaccessibility of metal(loid)s in soils. The Science of the total environment 727 138553–None. DOI:10.1016/j.scitotenv.2020.138553 PUBMED:https://pubmed.ncbi.nlm.nih.gov/32334219
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)