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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 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...
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...

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Updated: Jun 19, 2026

Therapeutic Massage for Psychological Well-being in Geriatric Oncology
03:59

Therapeutic Massage for Psychological Well-being in Geriatric Oncology

Published on: May 22, 2026

[Geriatric pharmacotherapy].

L B Lazebnik, Iu V Konev

    Advances in Gerontology = Uspekhi Gerontologii
    |October 16, 2009
    PubMed
    Summary
    This summary is machine-generated.

    Aging and illness alter drug absorption, distribution, metabolism, and excretion, necessitating specialized geriatric pharmacotherapy. Understanding these changes is crucial for safe medication use in older adults.

    Related Experiment Videos

    Last Updated: Jun 19, 2026

    Therapeutic Massage for Psychological Well-being in Geriatric Oncology
    03:59

    Therapeutic Massage for Psychological Well-being in Geriatric Oncology

    Published on: May 22, 2026

    Area of Science:

    • Geriatric pharmacotherapy
    • Pharmacokinetics
    • Pharmacodynamics

    Context:

    • Aging and illness significantly alter physiological processes.
    • These alterations impact drug absorption, distribution, metabolism, and excretion.
    • Older adults often take multiple medications, increasing adverse effect risks.

    Purpose:

    • To investigate the influence of medical products on senior age groups.
    • To explore features of geriatric pharmacotherapy.
    • To search for biologically active means against organism presenilation.

    Summary:

    • Drug pharmacokinetics and pharmacodynamics are significantly affected by aging and illness.
    • Special dispensing modes are required for medications in elderly and senile populations.
    • Polypharmacy in older adults elevates the risk of undesirable drug effects.

    Impact:

    • Highlights the necessity for healthcare professionals to study geriatric pharmacotherapy.
    • Emphasizes the need to understand drug influences on senior patients.
    • Underscores the importance of developing interventions to combat aging and maintain physiological function.