ascorbic acid vs ethinyl estradiol/levonorgestrel

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 ascorbic acid and ethinyl estradiol/levonorgestrel. 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

Ascorbic acid and acetaminophen may increase plasma ethinyl estradiol levels, possibly by inhibition of conjugation.

Drug Class
ascorbic acid Vitamin C Supplement
ethinyl estradiol/levonorgestrel Combined Oral Contraceptive
Type
ascorbic acid Over-the-Counter
ethinyl estradiol/levonorgestrel Prescription
Summary
ascorbic acid

This medicine is a Vitamin C supplement. It also has Vitamins A and D. It can help prevent tooth decay.

ethinyl estradiol/levonorgestrel

Amethia is a birth control pill that you take every day to prevent pregnancy. It contains two hormones, estrogen and progestin.

What It Treats
ascorbic acid

This medicine gives you extra Vitamins A, C, and D. It helps make sure you get enough of these vitamins in your diet. It also contains fluoride, which helps prevent cavities. This medicine is for children up to age 16 who don't get enough fluoride in their drinking water.

ethinyl estradiol/levonorgestrel

Amethia is used by women to prevent pregnancy. It contains two hormones that work together to stop you from getting pregnant. You must take it exactly as directed to prevent pregnancy.

How It Works
ascorbic acid

Vitamin C is needed for growth and repair of tissues in all parts of your body. Vitamins A and D are also important for overall health. Fluoride helps to strengthen tooth enamel and prevent tooth decay.

ethinyl estradiol/levonorgestrel

Amethia works by preventing ovulation (the release of an egg from the ovary). It also thickens the mucus in the cervix, making it harder for sperm to reach the egg. The hormones in Amethia also change the lining of the uterus.

Common Side Effects
ascorbic acid

No common side effects listed.

ethinyl estradiol/levonorgestrel
  • Irregular or heavy uterine bleeding
  • Weight gain
  • Acne
  • Nausea
  • Breast tenderness
FAERS Reports
ascorbic acid
  • Fatigue 2,275
  • Pain 2,059
  • Nausea 1,943
  • Diarrhoea 1,785
  • Headache 1,763
ethinyl estradiol/levonorgestrel
  • Feeling sick to your stomach 15
  • Throwing up 13
  • Stomach pain 10
  • Exposure to the drug during pregnancy 9
  • Feeling tired 9
Serious Warnings
ascorbic acid

There are no serious warnings listed.

ethinyl estradiol/levonorgestrel

Cigarette smoking increases your risk of serious heart problems from birth control pills. This risk is higher if you are over 35 and smoke. If you are over 35 and smoke, you should not use Amethia.

Pregnancy
ascorbic acid

This information is for children. Ask a doctor for advice if you are pregnant or breastfeeding.

ethinyl estradiol/levonorgestrel

Amethia should not be used during pregnancy. It is also not recommended if you are breastfeeding, as it can reduce milk production and small amounts of the drug can pass into breast milk.

Also Compare, Nearby Drugs

How to Read This ascorbic acid vs ethinyl estradiol/levonorgestrel Comparison

ascorbic acid is classified in the Vitamin C Supplement drug class, while ethinyl estradiol/levonorgestrel 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 split between OTC and prescription status, which affects access and supervision.

Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, ascorbic acid has 9,825 submissions while ethinyl estradiol/levonorgestrel has 56. 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 ascorbic acid blocks the process your body uses to clear birth control hormones. this can cause the levels of estrogen in your blood to rise higher than usual.. 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 ascorbic acid or ethinyl estradiol/levonorgestrel.

Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.