Yes, continue aspirin, Plavix (clopidogrel), and therapeutic enoxaparin (Lovenox) in NSTEMI
For patients with NSTEMI, dual antiplatelet therapy (aspirin + clopidogrel) should be continued for up to 12 months, and therapeutic enoxaparin should be continued for the duration of hospitalization (up to 8 days) or until PCI is performed. 1, 2, 1
Aspirin Management
- Continue aspirin indefinitely at a maintenance dose of 81-325 mg daily 1
- After the acute phase, 81 mg daily is preferred to minimize bleeding risk while maintaining efficacy 1, 3
- Non-enteric-coated aspirin should have been used initially for faster absorption 1
Clopidogrel (Plavix) Management
Continue clopidogrel 75 mg daily for up to 12 months in all NSTEMI patients without contraindications, regardless of whether managed medically or with PCI 1, 4, 2, 1
Key considerations:
- If a loading dose wasn't given initially, it should be administered now (300-600 mg) 1
- Ticagrelor (90 mg twice daily) is preferred over clopidogrel if available, as it provides superior outcomes 1, 3, 5
- Prasugrel is another option post-PCI but is contraindicated if prior stroke/TIA 3
Enoxaparin (Lovenox) Management
Continue therapeutic enoxaparin for the duration of hospitalization, up to 8 days, or until definitive management (PCI or discharge) 2, 6
Dosing specifics:
- 1 mg/kg subcutaneously every 12 hours is the standard therapeutic dose for NSTEMI 6
- If PCI is planned and last dose was <8 hours ago: no additional dosing needed
- If PCI is planned and last dose was >8 hours ago: give 0.3 mg/kg IV bolus 6
- Discontinue after PCI unless compelling reason to continue 3
Renal Dosing Adjustment
If creatinine clearance <30 mL/min: reduce to 1 mg/kg once daily 6
Triple Therapy Duration
The combination of aspirin + clopidogrel + enoxaparin is appropriate during the acute hospitalization phase 7, 8, 9. This regimen has demonstrated:
- Reduced death and reinfarction rates compared to aspirin + UFH alone 7
- No significant increase in major bleeding when properly dosed 7, 9
Critical Transition Points
At hospital discharge or after PCI:
- Stop enoxaparin 2, 3
- Continue aspirin indefinitely 1
- Continue clopidogrel (or preferably ticagrelor) for up to 12 months 1, 5
Common pitfall: Don't continue enoxaparin beyond hospitalization or PCI unless there's a separate indication (e.g., atrial fibrillation requiring anticoagulation). The acute anticoagulation phase is time-limited 2, 3.
Bleeding risk consideration: If bleeding risk outweighs benefit, earlier discontinuation of the P2Y12 inhibitor (clopidogrel) may be reasonable, but aspirin should continue 4, 3. Consider PPI prophylaxis for GI protection, especially in high-risk patients 3.