Does Norethindrone And Ethinyl Estradiol Interact with Tizanidine?
CDI records a moderate classification for Norethindrone And Ethinyl Estradiol and Tizanidine. The stored summary is: COCs containing ethinyl estradiol may inhibit metabolism of tizanidine, potentially increasing its plasma concentrations. The mechanism involves inhibition of metabolism. Patients taking both medications should consult their healthcare provider before starting, stopping, or changing the dosage of either drug. This record was extracted from drug labeling through openFDA. NIH/NLM RxNorm is used for drug identities. The summary and severity classification are CDI's processed information, not a verbatim source quotation. Product, route, and patient circumstances matter.
- Severity
- Moderate
- Norethindrone And Ethinyl Estradiol Class
- Estrogen
- Management
- Monitor for effects
- Data Source
- U.S. FDA via OpenFDA
Recorded Mechanism
Inhibition of metabolism
What To Tell Your Doctor or Pharmacist
If you are taking Norethindrone And Ethinyl Estradiol and your doctor is considering prescribing Tizanidine (or vice versa), make sure to:
- Inform your doctor and pharmacist of all current medications, including over-the-counter drugs and supplements
- Ask whether the benefits of combining these medications outweigh the risks for your specific situation
- Ask what symptoms to watch for that would indicate the interaction is causing problems
- Ask whether any dosage adjustments are needed
- Never stop or change either medication without first consulting your healthcare provider