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Related Concept Videos

Dose Response Curve: Conventional Versus Nonmonotonic01:21

Dose Response Curve: Conventional Versus Nonmonotonic

The correlation between a drug's dosage and its impact on a biological system is a cornerstone of pharmacology and toxicology. Conventional dose–response curves, which include graded and quantal relationships, are key to this understanding. Graded dose–response curves depict the spectrum of a biological reaction to different doses within an individual, indicating that as the drug dosage increases, so does the intensity of the response. On the other hand, quantal dose–response relationships...
Dose-Response Relationship: Overview01:03

Dose-Response Relationship: Overview

Agonists can bind with and activate receptors, resulting in the formation of drug-receptor complexes. Once formed, these complexes catalyze many biochemical processes at the cellular level and subsequently induce a pharmacologic response. The degree of response is directly proportional to the fraction of activated receptors, which in turn, depends on the concentration of the drug at the receptor site as well as the sensitivity of the receptor. An increase in the administered dose contributes to...
Pharmacokinetic–Pharmacodynamic Relationship: Dose to Pharmacological Effect01:28

Pharmacokinetic–Pharmacodynamic Relationship: Dose to Pharmacological Effect

A drug’s dosage and pharmacokinetic properties determine how quickly it acts, how intense its effects are, and how long it lasts. Higher doses increase drug concentration at receptor sites, producing a hyperbolic curve when pharmacologic response is plotted against drug dose. Converting this scale to a log-linear format results in a sigmoidal curve, better representing dose–response relationships.For drugs following a one-compartment model, the pharmacologic response is directly proportional to...
Therapeutic Drug Monitoring: Drug Analysis Methods01:26

Therapeutic Drug Monitoring: Drug Analysis Methods

Therapeutic Drug Monitoring (TDM) is a clinical practice that measures specific drug levels in a patient's blood or body tissues to tailor drug therapy effectively. This monitoring is critical for managing drugs with narrow therapeutic indices like digoxin and phenytoin, ensuring they are both safe and effective. For instance, monitoring theophylline levels in asthma patients involves precision and sensitivity to adjust doses according to individual responses to therapy, ensuring efficacy and...
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...
Pharmacokinetic–Pharmacodynamic Relationship: Intensity of Dose-Effect Relationship01:23

Pharmacokinetic–Pharmacodynamic Relationship: Intensity of Dose-Effect Relationship

Pharmacodynamics explores the relationship between drug concentration and its effect. In a quantal response drug, the duration of action better correlates with drug concentration, while for graded effect drugs, the intensity of response is more relevant. This intensity depends on the dose, drug removal rate, and the region of the concentration–response curve.The concentration–response curve can be divided into three regions. Region 3 (80–100% maximum response) demonstrates that even as drug...

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Updated: Jun 4, 2026

A Semi-Quantitative Drug Affinity Responsive Target Stability (DARTS) assay for studying Rapamycin/mTOR interaction
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A Semi-Quantitative Drug Affinity Responsive Target Stability (DARTS) assay for studying Rapamycin/mTOR interaction

Published on: August 27, 2019

Monitoring drugs by dose response graph.

K Finch, S Malkin

    Canadian Family Physician Medecin De Famille Canadien
    |February 1, 2011
    PubMed
    Summary
    This summary is machine-generated.

    This study monitored drug responses in 30 agitated patients over two years. Close physician-nurse teamwork ensured optimal sedative, tranquilizer, and hypnotic drug management for patient relaxation and participation.

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    Published on: June 21, 2018

    Area of Science:

    • Geriatric Medicine
    • Psychopharmacology
    • Nursing Care

    Background:

    • Agitated, noisy, restless, and aggressive behaviors are common challenges in extended care units.
    • Effective management of these behaviors is crucial for patient well-being and participation in activities.
    • Current pharmacological interventions require careful monitoring and adjustment.

    Purpose of the Study:

    • To evaluate the effectiveness of a drug monitoring system for agitated patients in an extended care setting.
    • To optimize the use of sedatives, tranquilizers, and hypnotic drugs for improved patient outcomes.
    • To assess the impact of close physician-nurse collaboration on patient response to medication.

    Main Methods:

    • A two-year observational study involving 30 patients with agitated behaviors.
    • Utilized a graphical monitoring system to record patient responses to medications at four-hour intervals over 24 hours.
    • Emphasized interdisciplinary teamwork between physicians and nurses for medication management.

    Main Results:

    • The monitoring system facilitated timely adjustments to drug dosages, timing, and types.
    • Patients showed improved relaxation, enabling greater participation in ward activities.
    • The collaborative approach between physicians and nurses was integral to the success of the intervention.

    Conclusions:

    • A systematic drug response monitoring system, supported by strong physician-nurse collaboration, is effective in managing agitated behaviors in extended care.
    • This approach enhances patient well-being and facilitates engagement in therapeutic activities.
    • Optimized psychotropic medication management is key to improving the quality of care for elderly patients with behavioral disturbances.