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Related Concept Videos

Drug Toxicity: Overview01:00

Drug Toxicity: Overview

Drug toxicity quantifies the harm a compound causes to an organism, varying by dose and potentially impacting whole systems or specific organs like the liver. Toxic reactions may arise from venomous insect or spider bites, with effects ranging from mild symptoms to severe outcomes such as brain damage or death. Common forms of acute poisoning include ethanol intoxication and overdose of pain or fever medications, with substances like GHB and heroin being particularly lethal at doses close to...
Pharmaceutical Poisoning: Potential Scenarios01:26

Pharmaceutical Poisoning: Potential Scenarios

Pharmaceutical poisoning can occur through various channels, impacting an estimated 2 million hospitalized patients in the U.S. annually with serious adverse drug responses. These scenarios encompass both therapeutic uses, such as drug toxicity, where even standard dosages can lead to severe central nervous system depression, and non-therapeutic exposures, including accidental ingestion by children, and environmental and occupational exposures.Unintentional poisonings often involve exploratory...
Drug Distribution: Tissue Binding01:21

Drug Distribution: Tissue Binding

Upon entering the systemic circulation, drugs can distribute into the interstitial and intracellular fluid of various tissue cells. This distribution is facilitated by the binding of drugs to different cellular components within tissues, which may lead to drug accumulation in specific areas. Drugs bound to tissue components serve as reservoirs that release free drugs back into the system, prolonging the drug's overall action. However, this accumulation can also result in local toxicity.
For...
Drug Toxicity: Dose-Dependent Reactions01:24

Drug Toxicity: Dose-Dependent Reactions

Drug toxicities can be stratified into pharmacological, pathological, or genotoxic based on their mechanisms. The incidence and severity of these toxicities generally increase with the drug's concentration in the body and exposure time.Pharmacological toxicity is evident when the therapeutic effects of drugs overshoot into adverse reactions in a predictable, dose-dependent manner. Central nervous system (CNS) depression from barbiturates is a classic example, with effects escalating from...
Drug Excretion: Miscellaneous Routes01:10

Drug Excretion: Miscellaneous Routes

Drug excretion involves various organs, including the liver, intestines, skin, and eyes. In the case of drugs or toxins, they can be actively secreted into bile by transporters in the hepatocyte's canalicular membrane. These substances enter the GI tract during digestion and may be reabsorbed into the body from the intestine. This process, known as enterohepatic recycling, can significantly prolong the presence and effects of a substance in the body. To interrupt this cycle, specific substances...
Enhanced Elimination of Poison01:26

Enhanced Elimination of Poison

Poison can be effectively removed from the gastrointestinal (GI) tract through various decontamination procedures.
Antidotes serve a crucial role in counteracting the effects of poison by inhibiting enzymes responsible for producing harmful drug metabolites. In some cases, these toxic metabolites can be neutralized by endogenous cosubstrates, which are maintained at specific concentrations to prevent interaction with cellular macromolecules and subsequent cell death.
Renal excretion is the...

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Related Experiment Video

Updated: Jun 15, 2026

Identification of Pharmaceuticals in The Aquatic Environment Using HPLC-ESI-Q-TOF-MS and Elimination of Erythromycin Through Photo-Induced Degradation
05:46

Identification of Pharmaceuticals in The Aquatic Environment Using HPLC-ESI-Q-TOF-MS and Elimination of Erythromycin Through Photo-Induced Degradation

Published on: August 1, 2018

Drug residues.

Philip T Reeves1

  • 1Australian Pesticides and Veterinary Medicines Authority, 6182 Kingston, ACT 2604, Australia. Phil.Reeves@apvma.gov.au

Handbook of Experimental Pharmacology
|March 6, 2010
PubMed
Summary
This summary is machine-generated.

Regulatory oversight ensures veterinary drugs in animal production are safe for human consumption. Monitoring programs confirm very low incidence of illegal drug residues, protecting consumers.

Related Experiment Videos

Last Updated: Jun 15, 2026

Identification of Pharmaceuticals in The Aquatic Environment Using HPLC-ESI-Q-TOF-MS and Elimination of Erythromycin Through Photo-Induced Degradation
05:46

Identification of Pharmaceuticals in The Aquatic Environment Using HPLC-ESI-Q-TOF-MS and Elimination of Erythromycin Through Photo-Induced Degradation

Published on: August 1, 2018

Area of Science:

  • Food Safety
  • Veterinary Pharmacology
  • Risk Assessment

Background:

  • Veterinary drugs are essential for animal health and production.
  • Potential for drug residues in food products necessitates regulatory control.
  • Ensuring human food safety from treated animals is a primary public health concern.

Purpose of the Study:

  • To outline the regulatory framework for veterinary drug use in food-producing animals.
  • To describe the human food safety evaluation process for veterinary drug residues.
  • To assess the effectiveness of monitoring programs in ensuring consumer safety.

Main Methods:

  • Human food safety evaluation based on scientific risk assessment.
  • Risk management through control measures and communication.
  • Post-market surveillance and monitoring for drug residues in food products.

Main Results:

  • Regulatory frameworks effectively manage risks associated with veterinary drug use.
  • Monitoring programs demonstrate a very low incidence of illegal drug residues.
  • Current systems provide assurance of consumer safety from treated animals.

Conclusions:

  • Veterinary drug regulation and monitoring effectively protect public health.
  • Continuous refinement of food safety risk analysis ensures ongoing consumer protection.
  • Collaboration among stakeholders is crucial for maintaining a safe food supply.