Indications
Xarelto is taken for both treatment and prevention of blood clots
- Prevention of Venous Thromboembolism (VTE):
Adults undergoing elective hip or knee replacement surgery. - Treatment & Prevention of Recurrence:
Deep vein thrombosis (DVT) and pulmonary embolism (PE).
Dosage
- VTE Prevention (Post-Surgery):
1. 10 mg once daily, starting 6–10 hours post-surgery.
2. Duration: 5 weeks (hip surgery) or 2 weeks (knee surgery). - DVT/PE Treatment:
1. Initial: 15 mg twice daily for 3 weeks.
2. Maintenance: 20 mg once daily.
3. Extended Prevention: 10 mg once daily (or 20 mg if high recurrence risk). - Renal Impairment:
CrCl 15–29 mL/min: 15 mg once daily after an initial 3-week 15 mg twice-daily regimen.
Avoid if CrCl < 15 mL/min.
The dosage provided here does not negate your doctor’s prescribed dosage.
Side Effects
- Common : Bleeding (epistaxis, GI hemorrhage), anemia, dizziness, elevated liver enzymes.
- Serious (Rare):
1. Major bleeding (cerebral, gastrointestinal)
2. Hypersensitivity reactions (anaphylaxis, Stevens-Johnson syndrome)
3. Compartment syndrome, acute renal failure.
Precautions
- Monitor for signs of bleeding (e.g., unexplained hemoglobin drop).
- Avoid it in active bleeding, recent CNS trauma, or high-bleeding-risk lesions.
- Use with caution in renal & liver impairment.
- In surgical procedures, discontinue 24 hours pre-surgery if possible.
It is contraindicated in pregnant/breastfeeding mothers
Xarelto contains lactose; avoid in galactose intolerance.
Interactions
Avoid concomitant use with:
- Strong CYP3A4/P-gp inhibitors, e.g., ketoconazole and ritonavir, as they increase rivaroxaban levels.
- Strong CYP3A4 inducers, e.g., rifampicin, reduce rivaroxaban efficacy.
Use with caution with:
- NSAIDs, antiplatelets, SSRIs/SNRIs increase bleeding risk.
Monitor INR 24 hours after the last rivaroxaban dose before initiating warfarin.
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