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QuickView for clopidogrel (compound)


PubChem
Name: clopidogrel
PubChem Compound ID: 10002188
Molecular formula: C16H18ClNO6S2
Molecular weight: 419.902 g/mol
DrugBank
Identification
Name: clopidogrel
Name (isomeric): DB00758
Drug Type: small molecule
Brand: Clopidogrel [Ban:Inn], Plavix, Clopidogrel sulfate
Category: Fibrinolytic Agents, Platelet Aggregation Inhibitors, Antiplatelet Agents
CAS number: 113665-84-2
Pharmacology
Indication: For the reduction of atherosclerotic events (myocardial infarction, stroke, and vascular death) in patients with atherosclerosis documented by recent stroke, recent myocardial infarction, or established peripheral arterial disease
Pharmacology: Clopidogrel, an antiplatelet agent structurally and pharmacologically similar to ticlopidine, is used to reduce atherosclerotic events such as myocardial infarction, stroke, and vascular death in patients who have had a recent stroke, recent MI, or have established peripheral vascular disease.
Mechanism of Action:
The active metabolite of clopidogrel prevents binding of adenosine diphosphate (ADP) to its platelet receptor, impairing the ADP-mediated activation of the glycoprotein GPIIb/IIIa complex. It is proposed that the inhibition involves a defect in the mobilization from the storage sites of the platelet granules to the outer membrane. he drug specifica...
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Absorption: Absorption is at least 50% based on urinary excretion of clopidogrel-related metabolites. Bioavailability has not been found to be affected by food.
Protein binding: 98%
Biotransformation: Hepatic, extensive and rapid, by hydrolysis to the main circulating metabolite, a carboxylic acid derivative, which accounts for approximately 85% of the circulating drug-related compounds. A glucuronic acid derivative of the carboxylic acid derivative has also been found in plasma and urine. Neither the parent compound nor the carboxylic acid derivative has a platelet inhibiting effect.
Route of elimination: Following an oral dose of 14C-labeled clopidogrel in humans, approximately 50% of total radioactivity was excreted in urine and approximately 46% in feces over the 5 days post-dosing.
Half Life: Carboxylic acid derivative: 8 hours (after single and multiple doses). Covalent binding to platelets has accounted for 2% of radiolabeled clopidogrel with a half-life of 11 days.
Toxicity: Symptoms of acute toxicity include vomiting (in baboons), prostration, difficult breathing, and gastrointestinal hemorrhage.
Affected organisms: Humans and other mammals
Interactions
Food interaction:
Take without regard to meals.
Drug interaction:
EsomeprazoleEsomeprazole may decrease serum concentrations of the active metabolite(s) of clopidogrel. Due to the possible risk for impaired clopidogrel effectiveness with this combination, clinicians should carefully consider the need for concurrent esomeprazole therapy in patients receiving clopidogrel. Monitor response to clopidogrel closely when using clopidogrel with esomeprazole. Whether there are differences among individual proton pump inhibitors is unclear. Other acid-lowering therapies (e.g., H2-receptor antagonists, antacids, etc.) do not appear to share this interaction with clopidogrel.
RivaroxabanAntiplatelet agents such as clopidogrel may enhance the anticoagulant effect of rivaroxaban. Avoid concurrent use of clopidogrel with rivaroxaban unless the anticipated benefits outweigh the risks of bleeding. Canadian rivaroxaban labeling recommends avoiding concurrent use with any antiplatelet agent, while the U.S. rivaroxaban labeling recommends caution and increased monitoring if used with any other antiplatelet agent. Any combined use should only be undertaken with increased monitoring for evidence of bleeding.
TreprostinilThe prostacyclin analogue, Treprostinil, increases the risk of bleeding when combined with the antiplatelet agent, Clopidogrel. Monitor for increased bleeding during concomitant thearpy.
PantoprazolePantoprazole may decrease serum concentrations of the active metabolite(s) of clopidogrel. Due to the possible risk for impaired clopidogrel effectiveness with this combination, clinicians should carefully consider the need for concurrent pantoprazole therapy in patients receiving clopidogrel. Monitor response to clopidogrel closely when using clopidogrel with pantoprazole. Whether there are differences among individual proton pump inhibitors is unclear. Other acid-lowering therapies (e.g., H2-receptor antagonists, antacids, etc.) do not appear to share this interaction with clopidogrel.
RabeprazoleRabeprazole may decrease serum concentrations of the active metabolite(s) of clopidogrel. Due to the possible risk for impaired clopidogrel effectiveness with this combination, clinicians should carefully consider the need for concurrent rabeprazole therapy in patients receiving clopidogrel. Monitor response to clopidogrel closely when using clopidogrel with rabeprazole. Whether there are differences among individual proton pump inhibitors is unclear. Other acid-lowering therapies (e.g., H2-receptor antagonists, antacids, etc.) do not appear to share this interaction with clopidogrel.
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