Does Estradiol Interact With Isotretinoin?
Norethindrone/ethinyl estradiol: In a study of 31 premenopausal female patients with severe recalcitrant nodular acne receiving OrthoNovum ® 7/7/7 Tablets as an oral contraceptive agent, isotretinoin capsules at the recommended dose of 1 mg/kg/day, did not induce clinically relevant changes in the pharmacokinetics of ethinyl estradiol and norethindrone and in the serum levels of progesterone, follicle-stimulating hormone (FSH) and luteinizing hormone (LH).
Severity: Minor
Severity basis: drug interactions section. Combining Estradiol (Estrogen) and Isotretinoin (Oral retinoid) is classified as a minor interaction.
What to Do
This is generally a minor interaction, but review it with your pharmacist to be sure it is safe for you.
How This Interaction Works
Interactions like this one can happen when two medicines have overlapping effects, or when one changes how the other is absorbed, broken down, or cleared from the body. Estradiol is a estrogen and Isotretinoin is a oral retinoid; together they are documented as a minor interaction. How much this matters depends on your dose, your other medications, and your overall health.
If You Take Both Medications
If you have been prescribed both Estradiol and Isotretinoin, do not start, stop, or change either medication on your own — some medicines are unsafe to stop suddenly. Tell your prescriber and pharmacist that you take both so they can decide whether the combination is right for you, adjust the dose, monitor you more closely, or suggest an alternative.
From the FDA Label
Norethindrone/ethinyl estradiol: In a study of 31 premenopausal female patients with severe recalcitrant nodular acne receiving OrthoNovum ® 7/7/7 Tablets as an oral contraceptive agent, isotretinoin capsules at the recommended dose of 1 mg/kg/day, did not induce clinically relevant changes in the pharmacokinetics of ethinyl estradiol and norethindrone and in the serum levels of progesterone, follicle-stimulating hormone (FSH) and luteinizing hormone (LH).
Source: FDA structured product labeling (set_id 0114567b-3bac-490d-b9eb-03a6c5d90935).
Check these against your full medication list in our free Interaction Checker
Frequently Asked Questions
Can you take Estradiol and Isotretinoin together?
Estradiol and Isotretinoin have a documented minor interaction. This is generally a minor interaction, but review it with your pharmacist to be sure it is safe for you.
How serious is the Estradiol and Isotretinoin interaction?
It is classified as a minor interaction, based on the FDA label's drug interactions section. A minor interaction is usually limited in effect but is still worth discussing with your care team.
What should I do if I'm taking both Estradiol and Isotretinoin?
If you have been prescribed both Estradiol and Isotretinoin, do not start, stop, or change either medication on your own — some medicines are unsafe to stop suddenly. Tell your prescriber and pharmacist that you take both so they can decide whether the combination is right for you, adjust the dose, monitor you more closely, or suggest an alternative.
This information is educational — not medical advice.
This page is provided for general educational purposes and summarizes publicly available data from sources such as the U.S. Food & Drug Administration. It is not a substitute for the judgment of a licensed clinician and should not be used to start, stop, or change any medication. It may be incomplete or out of date, and individual circumstances vary. Always talk with your prescriber or pharmacist about your specific medications and health conditions. If you think you may have a medical emergency, call 911.
Other Estradiol Interactions
- Estradiol + Atorvastatin(moderate)
- Estradiol + Tacrolimus(moderate)
- Estradiol + Amoxicillin(minor)
- Estradiol + Amoxicillin Clavulanate(minor)
- Estradiol + Colchicine(minor)
- Estradiol + Fluconazole(minor)
- Estradiol + Gabapentin(minor)
- Estradiol + Modafinil(minor)
- Estradiol + Pravastatin(minor)
- Estradiol + Testosterone(minor)