Dabigatran
Prescription ·Exploratory record · not publication-reviewed ·Updated July 13, 2026
Dabigatran is a direct thrombin (factor IIa) inhibitor that was the first DOAC approved for stroke prevention in non-valvular atrial fibrillation, based on the RE-LY trial. It is the only DOAC with a specific reversal agent (idarucizumab/Praxbind). Also approved for DVT/PE treatment after initial parenteral anticoagulation.
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What the research says.
A quick, data-only summary. The full evidence, dosing, and sources are below.
Dabigatran is a direct thrombin (factor IIa) inhibitor that was the first DOAC approved for stroke prevention in non-valvular atrial fibrillation, based on the RE-LY trial. NutriStack rates the supporting evidence as strong. Common adult dosing is AF: 150 mg twice daily (or 75 mg twice daily for CrCl 15–30 mL/min); DVT/PE: 150 mg twice daily after 5–10 days of parenteral anticoagulation (as prescribed by your physician), though a prescriber sets the actual dose. This profile indexes 10 sources.
- Dyspepsia and GI discomfort (most common, ~10%)
- Bleeding (major and minor)
- GI bleeding (higher rate than warfarin at 150 mg dose)
- Active pathological bleeding7
- Mechanical prosthetic heart valve (RE-ALIGN trial terminated for excess events)
The bottom line
Evidence rating strong. Most-documented uses: non-inferior (150 mg) or superior to warfarin for stroke prevention in af, specific reversal agent available (idarucizumab/praxbind), fixed dosing without routine monitoring. 10 sources indexed (2014–2024), with 0 interaction records on file.
How it works, mechanistically.
Core mechanism
Administered as the prodrug dabigatran etexilate, which is converted to active dabigatran by esterases. Dabigatran directly and reversibly inhibits both free and fibrin-bound thrombin (factor IIa). By inhibiting thrombin, it prevents conversion of fibrinogen to fibrin and inhibits thrombin-mediated platelet activation. Primarily renally eliminated (~80%).1,2
Dosing & protocol.
Can be taken with or without food; capsules must be kept in original packaging due to moisture sensitivity; do not place in pill organizers
Full safety detail.
Side effects
- Dyspepsia and GI discomfort (most common, ~10%)
- Bleeding (major and minor)
- GI bleeding (higher rate than warfarin at 150 mg dose)
- Nausea
- Abdominal pain
- Gastritis-like symptoms
Sources, by evidence tier.
Numbered references. Citations throughout the page link here.
Meta-analyses & systematic reviews
7- 1Thrombolysis After Dabigatran Reversal for Acute Ischemic Stroke: A National Registry-Based Study and Meta-AnalysisPMIDTheodorou A, Melanis K, Bakola E et al. · Neurology · 2024
Theodorou A, Melanis K, Bakola E et al.. Thrombolysis After Dabigatran Reversal for Acute Ischemic Stroke: A National Registry-Based Study and Meta-Analysis. Neurology. 2024
- 2Thrombolysis after dabigatran reversal: A nation-wide Italian multicentre study, systematic review and meta-analysisPMIDRomoli M, Matteo E, Migliaccio L et al. · European stroke journal · 2023
Romoli M, Matteo E, Migliaccio L et al.. Thrombolysis after dabigatran reversal: A nation-wide Italian multicentre study, systematic review and meta-analysis. European stroke journal. 2023
- 3Idarucizumab for dabigatran reversal: A systematic review and meta-analysis of indications and outcomesPMIDvan der Horst SFB, Martens ESL, den Exter PL et al. · Thrombosis research · 2023
van der Horst SFB, Martens ESL, den Exter PL et al.. Idarucizumab for dabigatran reversal: A systematic review and meta-analysis of indications and outcomes. Thrombosis research. 2023
- 4A systematic review and meta-analysis of dabigatran peak and trough concentration in adultsPMIDNg JW, Mohd Tahir NA, Chin PKL et al. · British journal of clinical pharmacology · 2022
Ng JW, Mohd Tahir NA, Chin PKL et al.. A systematic review and meta-analysis of dabigatran peak and trough concentration in adults. British journal of clinical pharmacology. 2022
- 5Intravenous Thrombolysis After Dabigatran Reversal by Idarucizumab: A Systematic Review of the LiteraturePMIDFrol S, Sagris D, Pretnar Oblak J et al. · Frontiers in neurology · 2021
Frol S, Sagris D, Pretnar Oblak J et al.. Intravenous Thrombolysis After Dabigatran Reversal by Idarucizumab: A Systematic Review of the Literature. Frontiers in neurology. 2021
- 6Idarucizumab for Reversing Dabigatran-Induced Anticoagulation: A Systematic ReviewPMIDThibault N, Morrill AM, Willett KC · American journal of therapeutics · 2018
Thibault N, Morrill AM, Willett KC. Idarucizumab for Reversing Dabigatran-Induced Anticoagulation: A Systematic Review. American journal of therapeutics. 2018
- 7Meta-analysis of randomized controlled trials on the risk of bleeding with dabigatranPMIDBloom BJ, Filion KB, Atallah R et al. · The American journal of cardiology · 2014
Bloom BJ, Filion KB, Atallah R et al.. Meta-analysis of randomized controlled trials on the risk of bleeding with dabigatran. The American journal of cardiology. 2014
Reference material
3- 8Connolly SJ et al. Dabigatran versus warfarin in patients with atrial fibrillation (RE-LY). N Engl J Med. 2009.Source linkedPMID
- 9Pollack CV et al. Idarucizumab for dabigatran reversal (RE-VERSE AD). N Engl J Med. 2015.Source linkedPMID
- 10Rothstein A et al. Switching From Aspirin Monotherapy After Noncardioembolic Stroke: A Systematic Review and Network Meta-Analysis. Stroke. 2026.Source linkedPMID
Common questions.
Quick answers about Dabigatran, drawn from the data on this page.
What is Dabigatran?
Dabigatran is a direct thrombin (factor IIa) inhibitor that was the first DOAC approved for stroke prevention in non-valvular atrial fibrillation, based on the RE-LY trial. It is the only DOAC with a specific reversal agent (idarucizumab/Praxbind). Also approved for DVT/PE treatment after initial parenteral anticoagulation.
What is Dabigatran used for?
Commonly cited benefits of Dabigatran include: Non-inferior (150 mg) or superior to warfarin for stroke prevention in AF; Specific reversal agent available (idarucizumab/Praxbind); Fixed dosing without routine monitoring; Lower intracranial hemorrhage risk than warfarin. NutriStack rates the overall evidence as strong.
What is a typical dose of Dabigatran?
A typical adult dose of Dabigatran is AF: 150 mg twice daily (or 75 mg twice daily for CrCl 15–30 mL/min); DVT/PE: 150 mg twice daily after 5–10 days of parenteral anticoagulation (as prescribed by your physician). The commonly recommended form is Oral capsule (must be swallowed whole, do not crush, chew, or open). These are general ranges, not personalized advice; confirm the right dose with a clinician.
What are the side effects of Dabigatran?
Reported side effects include dyspepsia and gi discomfort (most common, ~10%), bleeding (major and minor), gi bleeding (higher rate than warfarin at 150 mg dose), nausea, abdominal pain, gastritis-like symptoms. This is educational information; check with a healthcare professional before use.
How strong is the evidence for Dabigatran?
NutriStack rates this as Strong, meaning multiple high-quality meta-analyses or systematic reviews converge on the same finding. Full tier criteria are at https://nutristackapp.com/methodology/evidence-tiers.
Use this with your stack
Dabigatran in NutriStack.
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