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Related Concept Videos

Drug Dosing: Infants and Children01:29

Drug Dosing: Infants and Children

Pediatric patient dosages diverge from adults due to disparities in body surface area, total body water, and extracellular fluid per kilogram of body weight. The dosing regimen considers the variations in pharmacokinetics and pharmacology across distinct age groups, encompassing preterm newborns, infants, young children, older children, and adolescents. Calculation of pediatric patient doses is predicated on determining body surface area, which exhibits a superior correlation with the child's...
Dosage Regimen: Individualization01:24

Dosage Regimen: Individualization

Individualization in dosing regimens is the customization of medication doses for individual patients. Its necessity arises from the goal of maximizing therapeutic benefits while minimizing risks. This approach is pivotal because human responses to drugs can vary widely; what is effective for one person may be inadequate or excessive for another. Interpatient (intersubject) variability refers to differences in drug responses between individuals, while intrapatient (intrasubject) variability...
Pharmacokinetics in Pediatric Patients: Drug Excretion01:26

Pharmacokinetics in Pediatric Patients: Drug Excretion

In pediatric medicine, understanding the renal function and drug elimination nuances is crucial for administering safe and effective treatments. Newborns, in particular, display markedly slower renal functions than adults, profoundly affecting how drugs are cleared from their bodies. This slower drug clearance requires clinicians to extend the dosing intervals for many medications to prevent drug accumulation and toxicity while ensuring therapeutic efficacy.One key area where these adjustments...
Dosage Regimen Designs: Nomograms and Tabulations01:23

Dosage Regimen Designs: Nomograms and Tabulations

Nomograms and tabulations are vital tools used by clinicians to design accurate and individualized dosage regimens. These instruments provide a straightforward method for adjusting dosages based on individual patient characteristics, including age, weight, and physiological condition. The foundation of a drug's nomogram is population pharmacokinetic data collected and analyzed using specific models. This data simplifies complex equations, presenting them diagrammatically or tabularly for easy...
Dosage Regimens: Partial Pharmacokinetic Parameters01:01

Dosage Regimens: Partial Pharmacokinetic Parameters

It is not uncommon for complete drug pharmacokinetic profiles to remain elusive in pharmacokinetics. This necessitates certain educated assumptions by pharmacokineticists to determine appropriate dosage regimens without comprehensive pharmacokinetic data from animal or human studies. One prevalent assumption is setting the bioavailability factor, denoted as F, to 1 or 100%. This assumption caters to the scenario where a drug doesn't achieve full systemic absorption, resulting in the patient...
Dosage Regimens: Designs and Approaches01:28

Dosage Regimens: Designs and Approaches

Designing a dosage regimen, which refers to the manner of drug administration, is a complex process involving the selection of drug dose, route, and frequency. This process is underpinned by pharmacokinetic parameters derived from tests and population averages. These parameters are then tailored to patient-specific variables such as diagnosis, demographics, and allergy status. Once therapy commences, therapeutic response monitoring is critical and achieved through clinical and physical...

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[Individualized dosing guidelines for children].

Catherijne A J Knibbe1, Dick Tibboel, Saskia N de Wildt

  • 1St. Antonius Ziekenhuis, afd. Klinische Farmacie, Nieuwegein, the Netherlands. c.knibbe@antoniusziekenhuis.nl

Nederlands Tijdschrift Voor Geneeskunde
|April 19, 2013
PubMed
Summary
This summary is machine-generated.

Pediatric drug dosing requires individualized approaches based on pharmacokinetics and pharmacodynamics, not just body weight. The population approach helps identify factors influencing drug response for safer, effective pediatric medication.

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Area of Science:

  • Pharmacology
  • Pediatric Medicine
  • Drug Development

Background:

  • Current pediatric drug dosing often relies on adult data extrapolation.
  • Significant differences exist in drug response between pediatric and adult populations.
  • Body weight is an insufficient basis for pediatric dosing guidelines.

Purpose of the Study:

  • To advocate for pharmacokinetic and pharmacodynamic insights in pediatric drug dosing.
  • To promote the population approach for pediatric drug studies.
  • To establish a basis for individualized pediatric dosing guidelines.

Main Methods:

  • Utilizing a population approach in pediatric drug dosing studies.
  • Conducting covariate analysis to identify influencing factors.
  • Employing model drugs representing specific elimination routes.

Main Results:

  • The population approach minimizes the burden on pediatric patients.
  • Covariate analysis identifies factors like weight, age, illness, and genetics affecting drug disposition.
  • Model drugs facilitate understanding of drug elimination pathways.

Conclusions:

  • Pharmacokinetics and pharmacodynamics, not just body weight, should guide pediatric dosing.
  • The population approach is crucial for identifying pediatric-specific dosing factors.
  • Individualized dosing guidelines are achievable through robust pharmacokinetic and pharmacodynamic analysis.