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Warfarin

medication

Anticoagulant (brand name: Coumadin) to prevent blood clots. Requires regular INR monitoring and dietary awareness.

Reported Side Effects

No reports yet

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RCT Randomised Controlled Trial (RCT) — participants are randomly assigned to treatment or control groups, minimising bias. Gold standard for proving cause and effect. Moderate Evidence Single RCT or well-designed observational studies. Solid with some limitations.

Bleeding risk associated with warfarin in healthy volunteers

Thrombosis Research • 2020 • n=100

Lee C, Kim H, Park J

This study investigated the bleeding risk in healthy volunteers taking warfarin, finding a significant increase in minor bleeding events, underscoring the need for caution.

Read study DOI: 10.1016/j.thromres.2020.11.020

Research (1 study)

RCT Randomised Controlled Trial (RCT) — participants are randomly assigned to treatment or control groups, minimising bias. Gold standard for proving cause and effect.

Bleeding risk associated with warfarin in healthy volunteers

Thrombosis Research • 2020 • n=100

Lee C, Kim H, Park J

This study investigated the bleeding risk in healthy volunteers taking warfarin, finding a significant increase in minor bleeding events, underscoring the need for caution.

Read study DOI: 10.1016/j.thromres.2020.11.020

Community updates

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At a glance

Users tracking 0

Linked studies 1

Researched benefits 0

Side effects noted 1

Evidence tiers

Each benefit or side effect is rated by how much evidence exists — studies + community reports combined.

🏆 Gold

5+ studies and 500+ community reports. The most well-established evidence available.

🥈 Silver

2+ studies and 200+ community reports. Solid, reproducible evidence with meaningful community backing.

🥉 Bronze

1+ study or 100+ community reports. Early research with growing support.

🔬 Emerging

50+ community reports but no formal studies yet. Patterns observed by users, awaiting research.

💬 Anecdotal

Fewer than 50 reports, no formal studies. Very early or individual observations only.

Tiers are auto-calculated from linked studies and community reports. Always consult a healthcare professional before changing your routine.

Evidence levels

Each linked study is rated by the quality of its research methodology, independent of quantity.

Strong evidence

Multiple RCTs or meta-analyses. The gold standard of clinical research — controlled, repeatable, and peer-reviewed.

Moderate evidence

Single RCT or multiple well-designed observational studies. Solid methodology with some limitations.

Preliminary

Early-stage research — small trials, pilot studies, or limited data. Promising but not yet conclusive.

Weak evidence

Very limited formal research — animal studies, case reports, or mostly user observations.

Evidence levels are assessed per study by our research team. A single strong study can still have limited reach — see evidence tiers for the full picture.

Warfarin

Reported Side Effects

Bruising

Bleeding risk associated with warfarin in healthy volunteers

Research (1 study)

Bleeding risk associated with warfarin in healthy volunteers

Community updates

At a glance