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Related Concept Videos

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...
Nonlinear Pharmacokinetics: Overview01:19

Nonlinear Pharmacokinetics: Overview

Nonlinear or dose-dependent pharmacokinetics is a phenomenon that occurs when the pharmacokinetic parameters of certain drugs deviate from linear pharmacokinetics at higher doses. These drugs do not follow the expected first-order kinetics, where the rate of drug elimination is directly proportional to the drug concentration. Instead, they exhibit a nonlinear relationship, which can be attributed to several factors.
Nonlinearity can arise due to the saturation of plasma protein-binding or...
Pharmacokinetics in Pediatric Patients: Drug Distribution01:17

Pharmacokinetics in Pediatric Patients: Drug Distribution

Drug distribution in the pediatric population exhibits unique challenges and considerations due to the physiological differences between children, particularly neonates and infants, and adults. A crucial aspect of pediatric pharmacology is understanding how these differences impact the pharmacokinetics of various drugs, necessitating age-specific dosing strategies to ensure efficacy and safety.Neonates and infants have a higher total body water content, ~75%–90% of their body weight, compared...
Measurement of Bioavailability: Pharmacokinetic Methods01:30

Measurement of Bioavailability: Pharmacokinetic Methods

Pharmacokinetics is a vital branch of pharmacology that examines how drugs are absorbed, distributed, metabolized, and excreted by the body. Two key methodologies in pharmacokinetics are plasma drug concentration studies and urinary drug excretion analyses, both of which provide critical insights into a drug's therapeutic efficacy and bioavailability.Plasma Drug Concentration-Time StudiesPlasma drug concentration-time studies involve analyzing blood samples at specific intervals to quantify...
Pharmacokinetic–Pharmacodynamic Relationship: Problems01:24

Pharmacokinetic–Pharmacodynamic Relationship: Problems

The empirical approach to drug therapy optimization relies on correlating pharmacological response with administered dosage. Such an approach can be costly, time-consuming, and often yields poor correlation due to variables like formulation factors and drug elimination characteristics. A more precise approach correlates response with plasma drug concentration or the amount of drug in the body, rather than dosage. This is achieved through pharmacokinetic-pharmacodynamic (PK/PD) modeling, which...
Biopharmaceutics and Pharmacokinetics: Overview01:28

Biopharmaceutics and Pharmacokinetics: Overview

Understanding drugs, drug products, and their performance in pharmaceutical science is pivotal. Drugs, whether simple molecules or complex compounds, are designed to interact with the body's biological systems to diagnose, treat, or prevent diseases. Drug products include various delivery systems such as tablets, capsules, injections, and inhalers. The performance of these drug products is gauged by their ability to deliver the active ingredient to the desired site of action at the appropriate...

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Related Experiment Video

Updated: May 9, 2026

Use of Rabbit Eyes in Pharmacokinetic Studies of Intraocular Drugs
10:02

Use of Rabbit Eyes in Pharmacokinetic Studies of Intraocular Drugs

Published on: July 23, 2016

Applying pharmacokinetics to veterinary clinical practice.

Lauren A Trepanier1

  • 1School of Veterinary Medicine, Department of Medical Sciences, University of Wisconsin-Madison, Madison, WI 53706-1102, USA. latrepanier@svm.vetmed.wisc.edu

The Veterinary Clinics of North America. Small Animal Practice
|July 30, 2013
PubMed
Summary

This article explains how pharmacokinetic parameters optimize veterinary patient care. Applications include dosage adjustments, therapeutic drug monitoring, and managing drug therapy in animals with organ failure.

Keywords:
BioavailabilityDrug biotransformationDrug dose adjustmentTherapeutic drug monitoring

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Last Updated: May 9, 2026

Use of Rabbit Eyes in Pharmacokinetic Studies of Intraocular Drugs
10:02

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Microsurgical Skills of Establishing Permanent Jugular Vein Cannulation in Rats for Serial Blood Sampling of Orally Administered Drug
08:28

Microsurgical Skills of Establishing Permanent Jugular Vein Cannulation in Rats for Serial Blood Sampling of Orally Administered Drug

Published on: December 14, 2021

Area of Science:

  • Veterinary Pharmacology
  • Clinical Pharmacy
  • Animal Health

Background:

  • Optimizing drug therapy in veterinary medicine is crucial for patient outcomes.
  • Understanding how drugs are absorbed, distributed, metabolized, and excreted (pharmacokinetics) is key.
  • Current clinical practices can benefit from a more systematic application of pharmacokinetic principles.

Purpose of the Study:

  • To illustrate practical clinical applications of pharmacokinetic parameters in veterinary patient care.
  • To demonstrate how pharmacokinetic data can guide drug dosage selection and adjustments.
  • To highlight the role of pharmacokinetics in therapeutic drug monitoring and managing specific patient populations.

Main Methods:

  • Review of clinical scenarios demonstrating pharmacokinetic applications.
  • Examples of extrapolating drug dosages based on pharmacokinetic data.
  • Discussion of therapeutic drug monitoring strategies informed by pharmacokinetics.
  • Analysis of dosage adjustments in hepatic or renal impairment.

Main Results:

  • Pharmacokinetic parameters provide a rational basis for drug dosage extrapolation.
  • Therapeutic drug monitoring, guided by pharmacokinetics, enhances treatment efficacy and safety.
  • Interpretation of drug labels and pharmaceutical data is improved with pharmacokinetic knowledge.
  • Dosage adjustments in animals with hepatic or renal failure can be effectively managed using pharmacokinetic principles.

Conclusions:

  • Pharmacokinetic parameters are essential tools for optimizing veterinary patient care.
  • Systematic application of pharmacokinetics improves drug therapy outcomes in animals.
  • Veterinary professionals can enhance patient management through understanding and utilizing pharmacokinetic data.