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Drug Toxicity: Overview01:00

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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...
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Adverse Drug Reactions (ADRs) are potential complications that arise during pharmacotherapy, influenced by multiple risk factors. Age plays a significant role; both neonates and the elderly are at heightened risk due to their respective immature and diminished metabolic and elimination processes. Gender also impacts ADRs, with females experiencing a 1.5 to 1.7-fold greater risk than males, which may be linked to pharmacokinetic, pharmacodynamic, and hormonal differences. Notably, neonates, the...
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Post-marketing surveillance is a critical component of pharmaceutical regulation, often uncovering unanticipated adverse drug reactions (ADRs) once a drug is widely used over an extended period.
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Drug interactions occur when the pharmacological effect of one drug is altered by another substance, either enhancing or diminishing its activity. The drug whose activity is altered is known as the object drug, and the substance causing the alteration is called the agent drug or the precipitant. The net effects of these interactions are mostly undesirable, leading to decreased effectiveness or increased adverse effects. In rare cases, interactions can be beneficial, such as the enhanced...
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Drug-related allergies are immune-mediated responses triggered by the administration of pharmacological agents. These hypersensitivity reactions are classified based on the immune mechanisms involved. The four primary types—Type I, II, III, and IV—are mediated by different immunological pathways and exhibit distinct clinical manifestations.Type I Hypersensitivity/ IgE-Mediated Reactions: Immunoglobulin E (IgE) immediately mediates Type I hypersensitivity reactions. Upon initial...
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Drug–drug interactions can precipitate toxicity through multiple mechanisms. Absorption interactions alter how drugs enter the body, exemplified when ranitidine increases the absorption of basic drugs, while cholestyramine decreases the levels of propranolol. Protein binding interactions occur when drugs share the same binding sites on plasma proteins. Drugs like aspirin and warfarin, when bound in excess, can lead to increased free drug concentrations, enhancing the potential for...
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Quantitative Structure-Activity Relationship, Activity Prediction, and Molecular Dynamics of Non-nucleotide Reverse Transcriptase Inhibitors
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Adverse drug reactions.

Jamie J Coleman1, Sarah K Pontefract2

  • 1University of Birmingham and honorary consultant physician, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK j.j.coleman@bham.ac.uk.

Clinical Medicine (London, England)
|October 5, 2016
PubMed
Summary
This summary is machine-generated.

Adverse drug reactions (ADRs) are a significant healthcare challenge. This article reviews key facts, prevention, diagnosis, reporting, and management strategies for ADRs in clinical practice.

Keywords:
Adverse drug reactionsadverse drug reaction reporting systemsclinical pharmacologydrug-related side effects and adverse reactionspharmacovigilance

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Area of Science:

  • Clinical Pharmacology
  • Patient Safety
  • Pharmacovigilance

Background:

  • Adverse drug reactions (ADRs) pose a persistent challenge in healthcare.
  • Increasing therapeutic complexity, an aging population, and multimorbidity exacerbate ADR risks.
  • Effective management of ADRs is crucial for patient outcomes.

Purpose of the Study:

  • To summarize key facts regarding adverse drug reactions.
  • To explore the prevention, diagnosis, and reporting of ADRs.
  • To discuss the management of ADRs in current clinical practice.

Main Methods:

  • Review of current clinical practices and literature on adverse drug reactions.
  • Synthesis of information on ADRs, focusing on prevention, diagnosis, reporting, and management.
  • Exploration of challenges and strategies in managing ADRs.

Main Results:

  • ADRs are a complex issue influenced by multiple patient and treatment factors.
  • Proactive strategies for prevention, early diagnosis, and robust reporting systems are essential.
  • Integrated management approaches are necessary to mitigate ADR impact.

Conclusions:

  • Addressing ADRs requires a multi-faceted approach involving healthcare providers, patients, and regulatory bodies.
  • Continuous education and improved reporting mechanisms can enhance patient safety.
  • Effective ADR management is integral to optimizing therapeutic outcomes and reducing healthcare burdens.