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Drug Interactions between oritavancin and vardenafil

This report displays the potential drug interactions for the following 2 drugs:

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Interactions between your drugs

Moderate

vardenafil oritavancin

Applies to: vardenafil and oritavancin

Consumer information for this interaction is not currently available.

ADJUST DOSE: Coadministration with inhibitors of CYP450 3A4 and/or 2C9 may increase the plasma concentrations of vardenafil, which is primarily metabolized by the former and secondarily by the latter. The possibility of prolonged and/or increased pharmacologic effects of vardenafil should be considered.

MANAGEMENT: Dosage adjustments may be appropriate for vardenafil whenever a CYP450 3A4 and/or 2C9 inhibitor is added to or withdrawn from therapy based on efficacy and patient tolerance. The manufacturer recommends that an initial vardenafil dosage of 2.5 to 5 mg be used in patients treated concomitantly with a potent CYP450 3A4 inhibitor such as erythromycin, itraconazole, ketoconazole, indinavir, and ritonavir. No specific dosage recommendations are available for coadministration with less potent inhibitors. Patients should be advised to promptly notify their doctor if they experience pain or tightness in the chest or jaw, irregular heartbeat, nausea, shortness of breath, visual disturbances, syncope, or prolonged erection (greater than 4 hours).

Drug and food interactions

Moderate

vardenafil food

Applies to: vardenafil

Grapefruit juice may increase the blood levels of certain medications such as vardenafil. You may want to limit your consumption of grapefruit and grapefruit juice during treatment with vardenafil. However, if you have been regularly consuming grapefruit or grapefruit juice with the medication, then it is advisable for you to talk with your doctor before changing the amounts of these products in your diet, as this may alter the effects of your medication. Contact your doctor if your condition changes or you experience increased side effects. Orange juice is not expected to interact.

Therapeutic duplication warnings

No warnings were found for your selected drugs.

Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.


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Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.