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Anticoagulant Targets

Warfarin (vit K), heparin (Xa/IIa via AT), DOACs (direct Xa or IIa) on the coagulation cascade.

A free, animated anticoagulant targets you can read here or embed on any website, from Scrollchart.

Anticoagulant Targets

Anticoagulant Targets on the Coagulation CascadeWarfarin, heparin, direct Xa inhibitors, and direct thrombin inhibitors each act at distinct stepsExtrinsic pathIntrinsic pathTF/VIIaExtrinsicXIIaIntrinsicXIaIXa + VIIIaTenase complexVIIaXa + VaProthrombinaseIIa (Thrombin)Fibrin clotWarfarinInhibits vit K-dependentsynthesis: II, VII, IX, XMonitor: INR (target 2-3)Reversal: vit K, 4F-PCCUFH / LMWHAntithrombin-mediatedinhibition of Xa and IIaMonitor: aPTT (UFH) / anti-Xa (LMWH)Reversal: protamine sulfateRivaroxaban / ApixabanDirect Xa inhibitors(DOACs)Monitor: anti-Xa level (rarely needed)Reversal: andexanet alfaDabigatranDirect thrombin (IIa)inhibitor (DOAC)Monitor: dTT / ECTReversal: idarucizumabFinal common path: Xa converts prothrombin (II) to thrombin (IIa), which cleaves fibrinogen to fibrin. All anticoagulants ultimately block this step.

Coagulation cascade with each anticoagulant binding its target factor highlighted. Monitoring and reversal options annotated.

Good for

  • Hematology and cardiology teaching on the mechanism and practical differences between anticoagulant classes
  • Clinical pharmacology content comparing DOAC reversal agents (andexanet alfa vs idarucizumab) against traditional reversal
  • Patient education before starting anticoagulation for AFib, VTE, or mechanical valves

Source & accuracy

This anticoagulant targets is an editorial illustration built to represent the concept accurately. Where it shows figures, they are typical or representative values chosen to make the relationship clear, not a single underlying dataset. The diagram and its explainer are reviewed and maintained centrally, and updated over time as understanding improves.

Where each drug class acts on the cascade

The coagulation cascade converges on factor Xa, which helps convert prothrombin (factor II) to thrombin (IIa), and thrombin in turn forms fibrin. Anticoagulants intervene at different points. Warfarin works upstream by inhibiting vitamin K epoxide reductase, reducing synthesis of the vitamin K dependent factors II, VII, IX, and X.

Heparins act indirectly by enhancing antithrombin: unfractionated heparin accelerates inhibition of both factor Xa and thrombin, while low molecular weight heparins act relatively more on Xa.

How direct oral anticoagulants differ

DOACs target a single clotting factor directly. Rivaroxaban, apixaban, and edoxaban are direct factor Xa inhibitors, while dabigatran is a direct thrombin (IIa) inhibitor. Unlike warfarin they do not require routine INR monitoring.

Drug choice, dosing, and reversal depend on indication, kidney function, and bleeding risk, and must be managed by a prescribing clinician. This is general educational information, not medical advice.

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Reference

What this is
A free, embeddable, animated anticoagulant targets for any website.
Who uses it
Medical educators, Patient-info sites.
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File size
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License
Free forever. Editorial explainer text included; updated centrally over time.
URL
scrollchart.com/diagram/anticoagulant-targets

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Frequently asked questions

Where can I get a free animated "Anticoagulant Targets" for my website?
Scrollchart provides "Anticoagulant Targets" as a free, embeddable animated diagram you can add to any website with one line of HTML. No signup is required and there is no watermark. The diagram and its explainer text are served from scrollchart.com, so the embed stays current without any maintenance on your end.
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