See Mechanism of Action of Select Antiplatelet Agents table.
Pharmacologic Profile
General Use
To treat and prevent thromboembolic events such as stroke and MI.
General Action and Information
MECHANISM OF ACTION OF SELECT ANTIPLATELET AGENTS| DRUG | MECHANISM |
|---|---|
| Clopidogrel and ticagrelor | Inhibits P2Y12 receptor on platelets → Inhibits ADP-mediated platelet activation |
| Aspirin | Inhibits cyclooxygenase-1 →↓ thromboxane A2 |
| Eptifibatide | Glycoprotein IIb/IIIa receptor inhibitor |
Contraindications
Hypersensitivity, ulcer disease, active bleeding, and recent surgery.
Precautions
Use cautiously in patients at risk for bleeding (trauma, surgery) or a history of GI bleeding or ulcer disease.
Interactions
Concurrent use with NSAIDs, heparin, thrombolytics, warfarin, dabigatran, rivaroxaban, apixaban, or edoxaban may ↑ the risk of bleeding. All proton pump inhibitors, except pantoprazole, may ↓ the antiplatelet effects of clopidogrel. Opioids may ↓ effectiveness of clopidogrel and ticagrelor.
Nursing Implications
Assessment
Implementation
Patient/Family Teaching
Evaluation/Desired Outcomes