Drug Interactions between ethinyl estradiol / norelgestromin and zolmitriptan
This report displays the potential drug interactions for the following 2 drugs:
- ethinyl estradiol/norelgestromin
- zolmitriptan
Interactions between your drugs
ethinyl estradiol ZOLMitriptan
Applies to: ethinyl estradiol / norelgestromin and zolmitriptan
Consumer information for this interaction is not currently available.
MONITOR: Coadministration of hormonal contraceptives may increase plasma concentrations of zolmitriptan. A retrospective pharmacokinetic analysis indicates that mean peak plasma concentration (Cmax) and systemic exposure (AUC) of zolmitriptan were 30% and 50% higher, respectively, and time to peak plasma concentration (Tmax) was delayed by one-half hour in females taking oral contraceptives. The mechanism and clinical significance are unknown, although ethinyl estradiol-mediated inhibition of CYP450 1A2 may contribute, since zolmitriptan is a substrate of this isoenzyme. The effect of zolmitriptan on the pharmacokinetics of oral contraceptives has not been reported.
MANAGEMENT: Patients should be monitored for zolmitriptan-related adverse effects and notify their doctor promptly if they experience sedation, dizziness, paraesthesia, chest pain or tightness, shortness of breath, or irregular heartbeats.
Drug and food interactions
ZOLMitriptan food
Applies to: zolmitriptan
Alcohol can increase the nervous system side effects of ZOLMitriptan such as dizziness, drowsiness, and difficulty concentrating. Some people may also experience impairment in thinking and judgment. You should avoid or limit the use of alcohol while being treated with ZOLMitriptan. Do not use more than the recommended dose of ZOLMitriptan, and avoid activities requiring mental alertness such as driving or operating hazardous machinery until you know how the medication affects you. Talk to your doctor or pharmacist if you have any questions or concerns.
ethinyl estradiol food
Applies to: ethinyl estradiol / norelgestromin
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.
ethinyl estradiol food
Applies to: ethinyl estradiol / norelgestromin
Information for this minor interaction is available on the professional version.
ethinyl estradiol food
Applies to: ethinyl estradiol / norelgestromin
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
Report options
Drug Interaction Classification
| Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit. | |
| Moderately clinically significant. Usually avoid combinations; use it only under special circumstances. | |
| 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. | |
| 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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