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Related Concept Videos

Dosage Regimens: Designs and Approaches01:28

Dosage Regimens: Designs and Approaches

163
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...
163
Dosage Interval and Administration Route: Determination Methods01:19

Dosage Interval and Administration Route: Determination Methods

109
A medication’s effectiveness largely depends on its appropriate dosage and the route of administration. Dosage ensures that a sufficient drug concentration is maintained in the bloodstream to elicit the desired therapeutic effect without causing toxicity. The route of administration affects the drug's bioavailability, rate of absorption, and onset of action, which are crucial for achieving optimal therapeutic outcomes. Drug dosage calculations are critical to tailoring therapy to...
109
Rational Dosage Regimen: Maintenance Dose and Loading Dose01:24

Rational Dosage Regimen: Maintenance Dose and Loading Dose

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A rational dosage regimen considers a drug's pharmacokinetics, including its absorption, distribution, metabolism, and elimination from the body. By understanding these factors, the appropriate dosage can be determined, and the dosing schedule can be designed to achieve and maintain the desired therapeutic effect while minimizing adverse effects.
In most cases, drugs are administered repetitively or infused continuously to maintain a steady-state concentration in the body. At a steady...
5.0K
Drug Accumulation During Multiple Dosing: Repetitive IV Injections01:21

Drug Accumulation During Multiple Dosing: Repetitive IV Injections

155
Calculating drug dosage and accumulation in multiple-dose regimens is crucial for achieving therapeutic efficacy while avoiding toxicity. This involves determining the plasma drug concentrations over time to optimize dosing schedules. The principle of superposition is fundamental in this process, allowing for the prediction of drug concentration in plasma following multiple doses based on single-dose data.The principle of superposition asserts that the plasma concentration-time curves from...
155
Determination of Multiple Dosing Parameters: Loading and Maintenance Doses01:25

Determination of Multiple Dosing Parameters: Loading and Maintenance Doses

110
A loading dose is an essential pharmacological strategy to rapidly achieve the target plasma drug concentration necessary for an immediate therapeutic effect. This approach is especially critical for drugs characterized by slow absorption or extended half-lives, where delaying therapeutic plasma levels could compromise treatment outcomes. By administering a loading dose, clinicians ensure a prompt onset of drug action, even for agents with complex pharmacokinetic profiles.Achieving steady-state...
110
Dose Size and Dosing Frequency: Determination Methods01:21

Dose Size and Dosing Frequency: Determination Methods

136
Determining the optimal dose size and dosing frequency in pharmacotherapy is crucial for achieving therapeutic effectiveness while minimizing adverse effects. This article explores the methodologies employed in determining these parameters, focusing on their significance and interplay to tailor dosing regimens.Dose Size: Dose size refers to the amount of a drug administered in a single dose. It is determined based on the drug's pharmacodynamics and pharmacokinetics properties and...
136

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Updated: Dec 7, 2025

Multiplex Therapeutic Drug Monitoring by Isotope-dilution HPLC-MS/MS of Antibiotics in Critical Illnesses
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Antibiotic dosing – theory and practice.

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    Antimicrobial resistance is a major public health threat. Optimizing antimicrobial drug use based on pharmacokinetic and pharmacodynamic properties can improve treatment and reduce resistance.

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    Area of Science:

    • Public Health
    • Infectious Diseases
    • Pharmacology

    Background:

    • Antimicrobial resistance (AMR) poses a significant global health challenge.
    • Development of novel antimicrobial agents is limited, exacerbating the AMR crisis.
    • Increasing resistance necessitates optimizing the use of existing antimicrobial drugs.

    Purpose of the Study:

    • To emphasize the importance of rational antimicrobial drug utilization.
    • To highlight the role of pharmacokinetic and pharmacodynamic principles in antimicrobial therapy.

    Main Methods:

    • Review of current antimicrobial resistance trends.
    • Analysis of pharmacokinetic (PK) and pharmacodynamic (PD) properties of antimicrobial drugs.
    • Evaluation of therapeutic outcomes based on PK/PD-guided prescribing.

    Main Results:

    • Rational use of antimicrobials is crucial for effective treatment.
    • Tailoring antimicrobial therapy to PK/PD profiles enhances therapeutic efficacy.
    • Optimized antimicrobial use can mitigate the development of resistance.
    • Adherence to PK/PD principles may reduce adverse drug effects.

    Conclusions:

    • Basing antimicrobial drug selection and dosing on PK/PD properties is essential.
    • This approach offers improved patient outcomes and combats antimicrobial resistance.
    • Strategic antimicrobial stewardship is vital for public health preservation.