Variables related to length of stay in day programs for drug abusers

Related Experiment Video

Updated: Oct 12, 2026

A Procedure to Study the Effect of Prolonged Food Restriction on Heroin Seeking in Abstinent Rats
10:35

A Procedure to Study the Effect of Prolonged Food Restriction on Heroin Seeking in Abstinent Rats

Published on: November 11, 2013

M Cohen, M Woerner

    The American Journal of Drug and Alcohol Abuse
    |January 1, 1976
    PubMed

    More Related Videos

    A General Method for Evaluating Deep Brain Stimulation Effects on Intravenous Methamphetamine Self-Administration09:16

    A General Method for Evaluating Deep Brain Stimulation Effects on Intravenous Methamphetamine Self-Administration

    Published on: January 22, 2016

    Integrating Computerized Linguistic and Social Network Analyses to Capture Addiction Recovery Capital in an Online Community08:53

    Integrating Computerized Linguistic and Social Network Analyses to Capture Addiction Recovery Capital in an Online Community

    Published on: May 31, 2019

    Related Concept Videos

    Restorative Care01:19

    Restorative Care

    Restorative care is provided once a patient has been discharged from a healthcare facility and requires additional services. The additional services include home care, rehabilitation programs, and extended care. Restorative care centers help the patient regain their previous level of functioning or acquire a new level of functioning due to the incapacitating effects of a disease or a disability. It aims to assist patients in enhancing their quality of life by encouraging independence,...
    Drug Dependence01:17

    Drug Dependence

    Medications are typically administered to achieve therapeutic effects. Some drugs can modify an individual's mood and perception, frequently resulting in various enjoyable experiences. However, this can result in drug dependency, a condition marked by continuous drug use despite potential negative consequences. Drug dependency primarily falls into two categories: psychological and physical dependence. Psychological dependence occurs when the pleasurable feelings induced by the drug...
    Drug Accumulation During Multiple Dosing: Repetitive IV Injections01:21

    Drug Accumulation During Multiple Dosing: Repetitive IV Injections

    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...
    Drug Accumulation During Multiple Dosing: Intermittent IV Infusions01:24

    Drug Accumulation During Multiple Dosing: Intermittent IV Infusions

    Intermittent intravenous (IV) infusion is a method of drug administration where medications are delivered over short infusion periods followed by intervals of no drug delivery. This approach helps to prevent sustained high drug concentrations in the bloodstream, reducing the risk of adverse effects associated with prolonged exposure. Unlike continuous infusion, steady-state concentrations may not be achieved during a single dosing cycle but can be reached through repeated...
    Pharmacokinetic–Pharmacodynamic Relationship: Duration of Dose-Effect Relationship01:14

    Pharmacokinetic–Pharmacodynamic Relationship: Duration of Dose-Effect Relationship

    For drugs producing a quantal response, onset occurs when plasma concentration reaches a minimum effective level (Cmin). The drug's action duration depends on how long the plasma concentration remains above Cmin.Two primary factors influence this duration: dose size and the rate of drug removal from the action site. Both depend on the drug's redistribution to poorly perfused tissues and elimination processes. A larger dose promotes rapid onset and prolongs the effect's duration.Consider a...
    Pharmacokinetic–Pharmacodynamic Relationship: Influence of Elimination Half-Life on Effect Duration01:23

    Pharmacokinetic–Pharmacodynamic Relationship: Influence of Elimination Half-Life on Effect Duration

    Drug elimination from the body primarily occurs through metabolic and excretion pathways. Hepatic metabolism transforms lipophilic drugs into hydrophilic forms for excretion, typically via enzymatic processes classified as phase I (modification) and phase II (conjugation). Renal excretion eliminates drugs and metabolites through filtration and secretion in the kidneys. Impairment in liver or kidney function can hinder these processes, delaying drug clearance and extending the drug’s half-life.