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Related Concept Videos

Anticoagulant Drugs: Vitamin K Antagonists and Direct Oral Anticoagulants01:18

Anticoagulant Drugs: Vitamin K Antagonists and Direct Oral Anticoagulants

Oral anticoagulants are vital tools in preventing and treating blood clotting disorders. This diverse class of medications can be categorized as vitamin K antagonists, exemplified by warfarin, and direct thrombin inhibitors (DTIs), such as dabigatran, as well as factor Xa inhibitors, including rivaroxaban.
Warfarin, a prominent vitamin K antagonist family member, exerts its effect by inhibiting the enzyme VKORC1 (vitamin K epoxide reductase complex 1). By hindering this enzyme, warfarin...
Anticoagulant Drugs: Low-Molecular-Weight Heparins01:30

Anticoagulant Drugs: Low-Molecular-Weight Heparins

Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...
Venous Thrombosis III: Interprofessional Care01:29

Venous Thrombosis III: Interprofessional Care

Venous thrombosis requires effective prevention and treatment strategies to improve patient outcomes and reduce potential complications.Prevention StrategiesHealthcare providers must prioritize preventing venous thromboembolism (VTE) for all adult patients upon admission. Interventions depend on bleeding and thrombosis risk, medical history, current medications, diagnoses, planned procedures, and patient preferences. Patients on bed rest should change positions every two hours and, if not...
Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors01:20

Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors

Antiplatelet drugs emerge as frontline defenders against the insidious threat of thromboembolic diseases, where abnormal clots obstruct vital blood vessels. These drugs stand as bulwarks, inhibiting platelet aggregation and clot formation, thereby mitigating the risk of life-threatening conditions like myocardial infarction, coronary artery disease, and thrombotic strokes.
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
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Oral drug delivery is the most common route of administration due to its convenience, cost-effectiveness, and high patient compliance. It enables precise formulation to ensure proper drug dosage and bioavailability. The development of oral dosage forms considers drug properties such as solubility, stability, and absorption to optimize therapeutic efficacy.Tablets, capsules, liquids, and chewable formulations enhance drug stability, mask undesirable tastes, and improve patient experience.
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Post-approval, manufacturers may modify an approved new or generic drug product. Such modifications can encompass alterations in the Active Pharmaceutical Ingredient (API), manufacturing process, formulation, batch size, manufacturing site, and container closure system (FDA Guidance for Industry, April 2004). Often, a drug product may undergo multiple changes.These modifications require careful evaluation to determine their potential impact on the drug product's identity, strength, quality,...

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The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation
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Published on: February 28, 2012

New oral anticoagulants in development.

Jeffrey I Weitz1

  • 1Department of Medicine, McMaster University and Henderson Research Centre, Hamilton, Ontario, Canada. jweitz@thrombosis.hhscr.org

Thrombosis and Haemostasis
|January 12, 2010
PubMed
Summary

New oral anticoagulants offer a convenient alternative to existing treatments for thromboembolic disorders. These novel drugs, targeting thrombin or factor Xa, can be administered orally in fixed doses, eliminating the need for coagulation monitoring.

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Rapid Point-of-Care Assay of Enoxaparin Anticoagulant Efficacy in Whole Blood
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Published on: October 12, 2012

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Last Updated: Jun 17, 2026

The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation
23:33

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Published on: February 28, 2012

Rapid Point-of-Care Assay of Enoxaparin Anticoagulant Efficacy in Whole Blood
11:17

Rapid Point-of-Care Assay of Enoxaparin Anticoagulant Efficacy in Whole Blood

Published on: October 12, 2012

Area of Science:

  • Pharmacology
  • Hematology
  • Drug Development

Background:

  • Current anticoagulants (heparins, warfarin) have limitations including parenteral administration, need for monitoring, and drug-drug interactions.
  • Parenteral anticoagulants are inconvenient for long-term use.
  • Oral anticoagulants like warfarin require frequent monitoring and dose adjustments due to variable responses.

Purpose of the Study:

  • To review new oral anticoagulants (NOACs) in advanced development stages.
  • To highlight the advantages of NOACs over existing anticoagulant therapies.

Main Methods:

  • Review of scientific literature on emerging anticoagulants.
  • Focus on agents targeting thrombin and factor Xa.
  • Analysis of pharmacokinetic and pharmacodynamic properties.

Main Results:

  • NOACs offer oral administration and fixed dosing.
  • These agents eliminate the need for routine coagulation monitoring.
  • Development targets include direct thrombin inhibitors and factor Xa inhibitors.

Conclusions:

  • NOACs represent a significant advancement in anticoagulant therapy.
  • They address the limitations of current treatments, offering improved convenience and potentially reduced healthcare costs.
  • Further research and clinical application of NOACs are anticipated.