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Drug Interactions between anagrelide and ethinyl estradiol

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

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Interactions between your drugs

Moderate

ethinyl estradiol anagrelide

Applies to: ethinyl estradiol and anagrelide

Consumer information for this interaction is not currently available.

MONITOR: Theoretically, coadministration with drugs that are inhibitors of CYP450 1A2 may increase the plasma concentrations of anagrelide, which is a substrate of the isoenzyme.

MANAGEMENT: Clinicians should recognize the potential for interaction with drugs that inhibit CYP450 1A2 and monitor for evidence of anagrelide toxicities during coadministration. Since platelet reduction from anagrelide therapy is dose-related, thrombocytopenia may occur due to reduced clearance of anagrelide and may be a sign of overdosage. Patients should also be monitored for cardiovascular adverse effects such as tachycardia, palpitations, hypotension, edema, and congestive heart failure.

Drug and food interactions

Moderate

ethinyl estradiol food

Applies to: ethinyl estradiol

Consumer information for this interaction is not currently available.

MONITOR: Coadministration of ethinyl estradiol may increase the plasma concentrations of drugs that are primarily metabolized by CYP450 1A2. In a study of 30 healthy volunteers administered the CYP450 1A2 substrate tizanidine, the systemic exposure (AUC) of tizanidine was 3.9 times greater in women using an oral contraceptive containing ethinyl estradiol.

MANAGEMENT: Patients should be monitored for increased adverse effects of the CYP450 1A2 substrate during concomitant use with ethinyl estradiol. Product labeling for the specific CYP450 1A2 substrate should be consulted for additional recommendations.

Minor

ethinyl estradiol food

Applies to: ethinyl estradiol

Information for this minor interaction is available on the professional version.

Minor

ethinyl estradiol food

Applies to: ethinyl estradiol

Information for this minor interaction is available on the professional version.

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.

See also

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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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