Prasugrel
Prescription ·Exploratory record · not publication-reviewed ·Updated July 13, 2026
Prasugrel is a third-generation thienopyridine P2Y12 inhibitor with faster onset, greater potency, and less inter-patient variability than clopidogrel. The TRITON-TIMI 38 trial demonstrated superior efficacy over clopidogrel in ACS patients undergoing PCI, but with higher bleeding risk. Its single-step hepatic activation avoids the CYP2C19 polymorphism issue seen with clopidogrel.
Exploratory record, not a reviewed medical publication.
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This generated database record has not completed a claim-level review by a qualified human medical reviewer. Bibliography links and evidence labels are not approval. The page remains available for reference and is excluded from search indexing.
What the research says.
A quick, data-only summary. The full evidence, dosing, and sources are below.
Prasugrel is a third-generation thienopyridine P2Y12 inhibitor with faster onset, greater potency, and less inter-patient variability than clopidogrel. NutriStack rates the supporting evidence as strong. Common adult dosing is 60 mg loading dose, then 10 mg once daily (5 mg daily if <60 kg) for up to 12 months with aspirin (as prescribed by your physician), though a prescriber sets the actual dose. This profile indexes 10 sources.
- Bleeding (higher rate than clopidogrel, including life-threatening and fatal bleeding)
- Bruising
- Epistaxis
- Active pathological bleeding3
- History of prior stroke or TIA (net clinical harm demonstrated)
The bottom line
Evidence rating strong. Most-documented uses: superior to clopidogrel in reducing ischemic events in acs-pci (triton-timi 38), faster onset of platelet inhibition than clopidogrel, more consistent antiplatelet effect (not affected by cyp2c19 polymorphism). 10 sources indexed (2017–2023), with 0 interaction records on file.
How it works, mechanistically.
Core mechanism
Thienopyridine prodrug that requires only a single CYP-mediated hepatic oxidation step (primarily CYP3A4 and CYP2B6) to generate the active metabolite. The active metabolite irreversibly binds to the platelet P2Y12 ADP receptor, blocking ADP-mediated platelet activation and aggregation. Faster and more complete platelet inhibition than clopidogrel, with minimal impact from CYP2C19 polymorphisms.
Dosing & protocol.
Can be taken with or without food; rapidly absorbed and converted to active metabolite8,10
Full safety detail.
Side effects
- Bleeding (higher rate than clopidogrel, including life-threatening and fatal bleeding)
- Bruising
- Epistaxis
- GI bleeding
- Anemia
- Rash
- Thrombotic thrombocytopenic purpura (TTP, very rare)
Sources, by evidence tier.
Numbered references. Citations throughout the page link here.
Meta-analyses & systematic reviews
5- 1Ticagrelor Versus Prasugrel in Patients With Acute Coronary Syndrome: A Systematic Review and Meta-AnalysisPMIDShah RP, Shafiq A, Hamza M et al. · The American journal of cardiology · 2023
Shah RP, Shafiq A, Hamza M et al.. Ticagrelor Versus Prasugrel in Patients With Acute Coronary Syndrome: A Systematic Review and Meta-Analysis. The American journal of cardiology. 2023
- 2Meta-Analysis Comparing the Safety and Efficacy of Prasugrel and Ticagrelor in Acute Coronary SyndromePMIDUllah W, Ali Z, Sadiq U et al. · The American journal of cardiology · 2020
Ullah W, Ali Z, Sadiq U et al.. Meta-Analysis Comparing the Safety and Efficacy of Prasugrel and Ticagrelor in Acute Coronary Syndrome. The American journal of cardiology. 2020
- 3Meta-Analysis of Intraocular Bleeding With Dual Antiplatelet Therapy Using P2Y12 Inhibitors Prasugrel or TicagrelorPMIDSun MT, Huang S, Wiviott SD et al. · The American journal of cardiology · 2020
Sun MT, Huang S, Wiviott SD et al.. Meta-Analysis of Intraocular Bleeding With Dual Antiplatelet Therapy Using P2Y12 Inhibitors Prasugrel or Ticagrelor. The American journal of cardiology. 2020
- 4Efficacy and safety of prasugrel therapy for intracranial aneurysms with endovascular treatment: A meta-analysisPMIDXia P, He C, Chen L et al. · Journal of the neurological sciences · 2019
Xia P, He C, Chen L et al.. Efficacy and safety of prasugrel therapy for intracranial aneurysms with endovascular treatment: A meta-analysis. Journal of the neurological sciences. 2019
- 5The role of prasugrel in the management of acute coronary syndromes: a systematic reviewPMIDSpartalis M, Tzatzaki E, Spartalis E et al. · European review for medical and pharmacological sciences · 2017
Spartalis M, Tzatzaki E, Spartalis E et al.. The role of prasugrel in the management of acute coronary syndromes: a systematic review. European review for medical and pharmacological sciences. 2017
Reference material
5- 6Wiviott SD et al. Prasugrel versus clopidogrel in patients with acute coronary syndromes (TRITON-TIMI 38). N Engl J Med. 2007.Source linkedPMID
- 7Roe MT et al. Prasugrel versus clopidogrel for acute coronary syndromes without revascularization (TRILOGY ACS). N Engl J Med. 2012.Source linkedPMID
- 8Zheng L et al. Efficacy and safety of off-label low-dose compared with standard-dose antiplatelet agents in patients with coronary heart disease: a meta-analysis. Open Heart. 2026.Source linkedPMID
- 9Fujimoto S, Iguchi Y, Yamagami H et al.. P2Y(12) Reaction Units With Prasugrel in Acute Large Artery Atherosclerosis and Transient Ischemic Attack: An Open-Label Randomized Controlled Study, ACUTE-PRAS. Circulation journal : official journal of the Japanese Circulation Society. 2025Source linkedPMID
- 10Saito S, Isshiki T, Kimura T et al.. Efficacy and safety of adjusted-dose prasugrel compared with clopidogrel in Japanese patients with acute coronary syndrome: the PRASFIT-ACS study. Circulation journal : official journal of the Japanese Circulation Society. 2014Source linkedPMID
Common questions.
Quick answers about Prasugrel, drawn from the data on this page.
What is Prasugrel?
Prasugrel is a third-generation thienopyridine P2Y12 inhibitor with faster onset, greater potency, and less inter-patient variability than clopidogrel. The TRITON-TIMI 38 trial demonstrated superior efficacy over clopidogrel in ACS patients undergoing PCI, but with higher bleeding risk. Its single-step hepatic activation avoids the CYP2C19 polymorphism issue seen with clopidogrel.
What is Prasugrel used for?
Commonly cited benefits of Prasugrel include: Superior to clopidogrel in reducing ischemic events in ACS-PCI (TRITON-TIMI 38); Faster onset of platelet inhibition than clopidogrel; More consistent antiplatelet effect (not affected by CYP2C19 polymorphism); Greater reduction in stent thrombosis than clopidogrel. NutriStack rates the overall evidence as strong.
What is a typical dose of Prasugrel?
A typical adult dose of Prasugrel is 60 mg loading dose, then 10 mg once daily (5 mg daily if <60 kg) for up to 12 months with aspirin (as prescribed by your physician). The commonly recommended form is Oral tablet. These are general ranges, not personalized advice; confirm the right dose with a clinician.
What are the side effects of Prasugrel?
Reported side effects include bleeding (higher rate than clopidogrel, including life-threatening and fatal bleeding), bruising, epistaxis, gi bleeding, anemia, rash. This is educational information; check with a healthcare professional before use.
How strong is the evidence for Prasugrel?
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
Prasugrel in NutriStack.
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