Drug interactions with rifampin-isoniazid oral and norethindrone-ethinyl estradiol-iron oral

rifampin-isoniazid oral brand names and other generic formulations include:

IsonaRif Oral, Rifamate Oral

All generic drug interactions for rifampin-isoniazid oral (lists will include brand and generic names):

norethindrone-ethinyl estradiol-iron oral brand names and other generic formulations include:

Femcon Fe Oral, Generess Fe Oral, Layolis Fe Oral, Ovcon Fe Oral, Wymzya Fe Oral, Zenchent Fe Oral, Zeosa Oral

All generic drug interactions for norethindrone-ethinyl estradiol-iron oral (lists will include brand and generic names):
Serious - Use AlternativePotential for serious interaction; regular monitoring by your doctor required or alternate medication may be needed

rifampin-isoniazid oral and norethindrone-ethinyl estradiol-iron oral

rifampin-isoniazid oral will decrease the level or effect of norethindrone-ethinyl estradiol-iron oral by altering drug metabolism. The effect of hormonal contraceptives may be reduced. Use of a nonhormonal contraceptive is recommended.

Patient Drug Interactions Source: RxList
© 2023 RxList, Inc.
Serious - Use AlternativeAvoid or Use Alternate Drug.

rifampin-isoniazid oral and norethindrone-ethinyl estradiol-iron oral

rifampin-isoniazid oral will decrease the level or effect of norethindrone-ethinyl estradiol-iron oral by affecting hepatic/intestinal enzyme CYP3A4 metabolism. The efficacy of hormonal contraceptives may be reduced. Use of a nonhormonal contraceptive is recommended.

Clinical Drug Interactions Source: Medscape from WebMD
© 1994-2023 WebMD, LLC.

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Drug Interaction Categories

Contraindicated

Never use this combination of drugs because of high risk for dangerous interaction

Serious

Potential for serious interaction; regular monitoring by your doctor required or alternate medication may be needed

Significant

Potential for significant interaction (monitoring by your doctor is likely required)

Minor

Interaction is unlikely, minor, or nonsignificant

Disclaimer: The information contained herein should NOT be used as a substitute for the advice of an appropriately qualified and licensed physician or other health care provider. The information provided here is for informational purposes only. This tool may not cover all possible drug interactions. Please check with a physician if you have health questions or concerns. Although we attempt to provide accurate and up-to-date information, no guarantee is made to that effect.

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