Drug Interactions between ethinyl estradiol and Paxlovid
This report displays the potential drug interactions for the following 2 drugs:
- ethinyl estradiol
- Paxlovid (nirmatrelvir/ritonavir)
Interactions between your drugs
ethinyl estradiol ritonavir
Applies to: ethinyl estradiol and Paxlovid (nirmatrelvir / ritonavir)
Ritonavir may reduce the blood levels and effects of ethinyl estradiol. If you are using birth control pills or another hormone-type contraceptive such as a patch, shot, vaginal ring or implant, you should talk to your doctor before taking ritonavir. You may need an alternative or additional method of birth control during and for at least two weeks after treatment with ritonavir in order to avoid an unintended pregnancy. Let your doctor know if you experience bleeding outside of your menstrual cycle, since it may indicate reduced effectiveness of ethinyl estradiol. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
Drug and food interactions
ritonavir food
Applies to: Paxlovid (nirmatrelvir / ritonavir)
Ritonavir should be taken with food to lessen gastrointestinal side effects. It is important that you take this medication exactly as prescribed by your doctor. Do not change your treatment or stop treatment without first talking to your doctor.
ethinyl estradiol food
Applies to: ethinyl estradiol
Information for this minor interaction is available on the professional version.
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
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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