Interações medicamentosas
Oritavancin + Warfarin
Gravidade: Moderada
Oritavancin and Warfarin: moderate interaction.
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Resumo
Oritavancin artificially prolongs PT/INR and aPTT in laboratory tests for hours to days after dosing, so coagulation results may not reflect true anticoagulation in warfarin-treated patients. Oritavancin may also modestly raise warfarin exposure, so true bleeding risk may be increased.
O que esta interação significa em palavras simples
Oritavancin and Warfarin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Oritavancin belongs to Anti Bacterial; Warfarin belongs to Cardiovascular.
Por que acontece
Oritavancin binds and interferes with phospholipid reagents used in clotting assays, and may weakly inhibit CYP2C9 and so reduce warfarin clearance.
O que fazer
Avoid relying on INR measurements shortly after oritavancin dosing and monitor the patient clinically for bleeding. Consider alternative anticoagulation monitoring or a different antibiotic if tight INR control is needed.
O que perguntar ao farmacêutico
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Outras interações de Oritavancin
- Heparin + Oritavancin Contraindicada
- Carbamazepine + Oritavancin Leve
- Cyclosporin + Oritavancin Leve
- Ethosuximide + Oritavancin Leve
- Flecainide + Oritavancin Leve
- Oritavancin + Phenytoin Leve
Outras interações de Warfarin
- Defibrotide + Warfarin Contraindicada
- Ketorolac + Warfarin Contraindicada
- Abciximab + Warfarin Grave
- Acetylsalicylic acid + Warfarin Grave
- Adagrasib + Warfarin Grave
- Amiodarone + Warfarin Grave
Perguntas frequentes
Can I take Oritavancin with Warfarin?
MediHelp rates the interaction as moderate. Oritavancin and Warfarin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Oritavancin artificially prolongs PT/INR and aPTT in laboratory tests for hours to days after dosing, so coagulation results may not reflect true anticoagulation in warfarin-treated patients. Oritavancin may also modestly raise warfarin exposure, so true bleeding risk may be increased.
How serious is the interaction between Oritavancin and Warfarin?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid relying on INR measurements shortly after oritavancin dosing and monitor the patient clinically for bleeding. Consider alternative anticoagulation monitoring or a different antibiotic if tight INR control is needed.
What other medicines interact with Oritavancin?
MediHelp also lists interactions of Oritavancin with, for example, Heparin, Carbamazepine, Cyclosporin. The full list is on the Oritavancin page.
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