estradiol vs ethinyl estradiol/norethindrone
PlainMeds reviewed this comparison against our methodology in August 2026. It places FDA and CMS record fields side by side, without recommending either medication.
Side-by-side comparison of estradiol and ethinyl estradiol/norethindrone. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
minor Known Drug Interaction
7.2 Increase i n Plasma Levels of Ethinyl Estradiol Associated with Co-Administered Drugs Co-administration of atorvastatin and certain COCs containing ethinyl estradiol increase AUC values for ethinyl estradiol by approximately 20 percent. Ascorbic acid and acetaminophen may increase plasma ethinyl estradiol levels, possibly by inhibition of conjugation. 7.4 Changes in Plasma Levels of Co-Administered Drugs COCs containing some synthetic estrogens (for example, ethinyl estradiol) may inhibit the metabolism of other compounds.
Estrace, Vivelle-Dot
Loestrin, Junel
Iclevia is a birth control pill. It contains two hormones, a progestin and an estrogen, that work together to prevent pregnancy.
Lo Loestrin Fe is a birth control pill. It helps prevent pregnancy in women.
Iclevia is used by women who can get pregnant to prevent pregnancy. It contains two types of hormones. These hormones stop you from releasing an egg and also change the lining of your uterus, which prevents pregnancy.
Lo Loestrin Fe is used to prevent pregnancy. It contains two hormones, a progestin and an estrogen. It works by preventing the release of an egg from your ovary.
Iclevia contains two hormones: levonorgestrel (a progestin) and ethinyl estradiol (an estrogen). These hormones prevent pregnancy by stopping ovulation (the release of an egg from the ovary). They also change the lining of the uterus to prevent a fertilized egg from implanting.
Lo Loestrin Fe contains two hormones: norethindrone acetate and ethinyl estradiol. These hormones prevent ovulation (the release of an egg from the ovary). They also change the lining of the uterus, making it harder for a fertilized egg to implant.
- • Headache
- • Heavy menstrual bleeding
- • Nausea
- • Painful periods
- • Acne
- • Nausea or vomiting
- • Headache
- • Irregular bleeding
- • Painful periods
- • Weight changes
- Product Adhesion Issue 5,172
- Headache 5,036
- Nausea 4,754
- Fatigue 4,511
- Pain 3,480
No adverse event reports.
Cigarette smoking increases your risk of serious heart problems from birth control pills. This risk is higher if you are over 35 and smoke more cigarettes. You should not take Iclevia if you are over 35 and smoke.
Cigarette smoking increases your risk of serious heart problems from birth control pills. This risk is higher if you are over 35 and smoke. Women over 35 who smoke should not use Lo Loestrin Fe.
Do not use Iclevia if you are pregnant. If you become pregnant while taking Iclevia, stop taking it right away. Iclevia can reduce milk production, so you may want to use a different birth control method while breastfeeding.
Do not use Lo Loestrin Fe if you are pregnant. It can also reduce milk production while breastfeeding, so other birth control options are recommended.
Also Compare, Nearby Drugs
How to Read This estradiol vs ethinyl estradiol/norethindrone Comparison
estradiol is classified in the Estrogen Hormone drug class, while ethinyl estradiol/norethindrone sits within the Combined Oral Contraceptive class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. Both drugs are prescription-only, so a licensed provider must authorize use.
Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, estradiol has 22,953 submissions while ethinyl estradiol/norethindrone has 0. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. These two drugs have a known minor interaction flagged in FDA labeling, attributed to taking these two medications together can slow down how your body breaks down estrogen. this can cause the level of estrogen in your blood to rise.. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.
A table cannot represent individual circumstances. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This registry does not provide medical, treatment, substitution, or medication-change directions for estradiol or ethinyl estradiol/norethindrone.
Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.