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Related Concept Videos

Drug Dosing: Geriatric Patients01:15

Drug Dosing: Geriatric Patients

Elderly individuals encompass a diverse population with varying degrees of age-related physiological changes. Defining the elderly presents challenges, as the geriatric population is often arbitrarily categorized as individuals older than 65. However, many individuals in this group lead active and healthy lives, with an increasing number surpassing 85 years and falling into the older elderly category. Physiological changes associated with aging impact performance capacity and homeostatic...
Pharmacodynamics in Geriatric Patients: Effects of Age01:27

Pharmacodynamics in Geriatric Patients: Effects of Age

Age-related pharmacokinetic changes are extensively documented, but understanding age-related pharmacodynamic alterations is relatively limited. This knowledge gap can be partly attributed to the complexity of developing appropriate measures of drug responses compared to bioanalytical methods for determining drug concentrations.Most information regarding age-related differences in human pharmacodynamics originates from cross-sectional studies. However, these studies assume that observed mean...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Absorption01:22

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Absorption

As individuals age, their body's physiology evolves, affecting drug pharmacokinetics. The most apparent changes occur in the gastrointestinal tract, where an increase in gastric pH, a delay in gastric emptying, and a reduction in gastrointestinal motility are observed. Remarkably, these changes do not substantially modify the absorption of orally administered drugs, particularly those absorbed via passive diffusion.Transdermal drug delivery emerges as a highly viable method for older adults due...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion01:18

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion

In geriatric patients, renal physiology undergoes significant changes, including diminished renal blood flow and a lower glomerular filtration rate (GFR), leading to alterations in medication clearance. Drugs such as aminoglycoside antibiotics, lithium, and digoxin, which rely on glomerular filtration for removal from the body, particularly impact pharmacokinetics. These drugs tend to have slower clearance rates in older adults, necessitating careful dosage considerations.Evaluation of renal...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism01:18

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism

Geriatric patients show significant variation in how their bodies process medications, which can change how effective and safe treatments are. The liver is the primary organ where drug metabolism occurs, involving two main types of chemical reactions: phase I and II. Phase I metabolism is driven by the cytochrome P450 enzyme system, which includes key types such as CYP3A, CYP2D6, and CYP2C9. Research indicates that while aging doesn't notably alter the levels or activity of these enzymes, it...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution01:00

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution

Drug distribution in the human body is influenced by several factors, including plasma protein concentration, body composition, blood flow, tissue-protein concentration, and tissue fluid pH. Among these, changes in plasma protein concentration and body composition due to aging significantly affect how drugs are distributed within the body. Specifically, aging is associated with a decrease in albumin levels by about 10% and an increase in α1-acid glycoprotein levels. These alterations are not...

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Related Experiment Video

Updated: Jun 1, 2026

Assessment of Dependence in Activities of Daily Living Among Older Patients in an Acute Care Unit
06:52

Assessment of Dependence in Activities of Daily Living Among Older Patients in an Acute Care Unit

Published on: September 30, 2020

[Adherence and persistence in elderly subjects].

Laure de Decker1, Aude Gouraud, Gilles Berrut

  • 1Pôle de Gérontologie Clinique, CHU, Hôpital Bellier, Nantes. Gilles.berrut@chu-nantes.fr

Geriatrie Et Psychologie Neuropsychiatrie Du Vieillissement
|May 19, 2011
PubMed
Summary
This summary is machine-generated.

Medication persistence and adherence are key to improving patient outcomes. Ensuring quality information and support, especially for the elderly, enhances medication benefit-risk balance.

Related Experiment Videos

Last Updated: Jun 1, 2026

Assessment of Dependence in Activities of Daily Living Among Older Patients in an Acute Care Unit
06:52

Assessment of Dependence in Activities of Daily Living Among Older Patients in an Acute Care Unit

Published on: September 30, 2020

Area of Science:

  • Pharmacology
  • Geriatric Medicine
  • Health Services Research

Context:

  • Medication management is crucial for therapeutic success, particularly in elderly populations.
  • Understanding patient adherence and persistence is vital for optimizing drug efficacy and safety.
  • The benefit-risk profile of medications is directly influenced by how patients take their drugs.

Purpose:

  • To define and differentiate medication persistence and adherence.
  • To highlight the importance of these factors in improving the medication benefit-risk balance.
  • To recommend strategies for enhancing medication management in the elderly.

Summary:

  • Persistence refers to the duration of medication use, while adherence encompasses the quality of intake (dosage, frequency, regularity, duration).
  • Both are essential for maximizing therapeutic benefits and minimizing risks associated with drug therapy.
  • Effective strategies include providing quality information and developing assistive tools and resources for elderly patients.

Impact:

  • Improved patient adherence and persistence can lead to better health outcomes and reduced healthcare costs.
  • Targeted interventions for the elderly can enhance their ability to manage medications effectively.
  • This research underscores the need for comprehensive support systems in pharmacotherapy.