Rehan Khan Explores Clopidogrel
Rehan Khan, Hospital Pharmacist and Manager Auctus Hospital, shared on LinkedIn:
”Day 2/365 – Medicine of the Day: CLOPIDOGREL
One-Sentence Definition
Clopidogrel is an antiplatelet drug used to prevent blood clot formation in patients with cardiovascular and cerebrovascular diseases.
Pharmacological Overview
Drug class: Antiplatelet agent (P2Y₁₂ receptor inhibitor)
Drug type: Prodrug
Primary role: Prevention of arterial thrombosis
Therapeutic Uses
- Acute Coronary Syndrome (ACS)
- Post–myocardial infarction (MI)
- Stroke and TIA prevention
- After coronary stent placement
- Alternative in aspirin intolerance
Mechanism of Action (MOA)
- Inhibits ADP (P2Y₁₂) receptors on platelets
- Prevents activation of GPIIb/IIIa complex
- Lowers Platelet aggregation
- Effect lasts for platelet lifespan (7–10 days)
Common Dose
- Maintenance dose: 75 mg once daily
- Loading dose (ACS/PCI): 300–600 mg stat
Key Adverse Effects
Bleeding (most common)
Gastrointestinal upset
Rare: Thrombotic thrombocytopenic purpura (TTP)
Clinical Pearl
Clopidogrel is a prodrug—its efficacy depends on liver enzyme activation (CYP2C19).
HISTORY OF CLOPIDOGREL
1980s: Development of thienopyridine antiplatelets
1997: Clopidogrel approved for clinical use
CAPRIE trial: Showed superiority over aspirin in reducing ischemic events
Modern era: Backbone of dual antiplatelet therapy (DAPT) with aspirin
Why Clopidogrel Matters
- Essential in cardiology and interventional practice
- Life-saving in stent patients
- WHO essential cardiovascular medicine
Widely used globally in ACS protocols”
Stay updated with Hemostasis Today.
-
Apr 3, 2026, 05:59Nathan Connell: How the 2021 VWD Guidelines Are Actually Changing Real – World Practice
-
Apr 3, 2026, 05:28Tareq Abadl: How Iron Profile Reveals Hidden Insights about Blood Health and Iron Balance
-
Apr 3, 2026, 04:49Niraj Sharma: Breaking News Special Edition, CHAMPION-AF, CLOSURE-AF, PRAGUE-17, and Why LAAC Still Does Not Dethrone Contemporary Anticoagulation
-
Apr 2, 2026, 18:32Niyas Khalid: A Rare Case of Venous Ischemic Pancreatitis Redefining Diagnosis
-
Apr 2, 2026, 18:16Saravanan Subramaniam: How Extracellular Histones Act as Key Drivers of Thromboinflammation
-
Apr 2, 2026, 18:06Rob Molhoek Brings Invaluable Insights on Stroke Awareness and Care Improvements – Stroke Foundation
-
Apr 2, 2026, 17:21Paul Bolaji: Phase 2 of the Nigeria National Stroke Registry Is Now Live
-
Apr 2, 2026, 17:13Catherine Jennings: Marking Today as an Important Step Forward for Patients With PE
-
Apr 2, 2026, 17:11Arun V. J: Our Clinical Audit on Transfusion Safety Selected for Presentation at CAHOCON 2026