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Drug Interactions between Avapro and vadadustat

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

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Interactions between your drugs

Moderate

irbesartan vadadustat

Applies to: Avapro (irbesartan) and vadadustat

Consumer information for this interaction is not currently available.

MONITOR: Coadministration with vadadustat, a weak CYP450 2C9 inhibitor, may increase the plasma concentrations and the risk of adverse effects of drugs that are substrates of CYP450 2C9. A drug interaction study evaluating the effect of vadadustat (600 mg) on the pharmacokinetics of celecoxib, a CYP450 2C9 substrate, showed an increase in peak plasma concentration (Cmax) and systemic exposure (AUC) by 60% and 11%, respectively.

MANAGEMENT: Some authorities recommend using caution when vadadustat is used in combination with CYP450 2C9 substrates. Monitoring for signs and symptoms of increased exposure to the CYP450 2C9 substrate should be considered whenever vadadustat is added to or withdrawn from therapy. The prescribing information for concomitant medications may be consulted to assess the benefits versus risks of coadministration, as well as any dosage adjustments that may be required during coadministration and/or following the discontinuation of an CYP450 2C9 inhibitor.

Drug and food interactions

Moderate

irbesartan food

Applies to: Avapro (irbesartan)

If you are taking irbesartan you should avoid potassium-containing salt substitutes or over-the-counter potassium supplements without first talking to your doctor. This can cause high levels of potassium in your blood. High levels of potassium can cause weakness, irregular heartbeat, confusion, tingling of the extremities, or feelings of heaviness in the legs. Call your doctor at once if you have any of these symptoms.

Moderate

vadadustat food

Applies to: vadadustat

Consumer information for this interaction is not currently available.

MONITOR: Smoking and alcohol consumption during therapy with vadadustat may increase the risk of gastrointestinal erosions. Serious erosions, including gastrointestinal bleeding and the need for red blood cell transfusions, have been reported during vadadustat clinical trials. Patients with a history of gastrointestinal erosion, peptic ulcer disease, and current tobacco smokers and alcohol drinkers may be at higher risk of gastrointestinal injury.

MANAGEMENT: Caution is advised if vadadustat is prescribed to current tobacco smokers or alcohol drinkers. Patients should be advised to contact their physician if they develop potential signs and symptoms of gastrointestinal injury such as abdominal pain, hematemesis, trouble swallowing, chest or throat pain, and/or black, tarry stools.

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.

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