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abiraterone vs drospirenone/ethinyl estradiol

Side-by-side comparison of abiraterone and drospirenone/ethinyl estradiol Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.

Drug Class
abiraterone CYP17 Inhibitor
drospirenone/ethinyl estradiol Combined Oral Contraceptive
Type
abiraterone Prescription
drospirenone/ethinyl estradiol Prescription
Summary
abiraterone

Abiraterone (Zytiga) is a medicine used with prednisone to treat prostate cancer that has spread. It works by lowering the amount of androgen your body makes.

drospirenone/ethinyl estradiol

This medicine contains drospirenone and ethinyl estradiol, which are hormones that prevent pregnancy. It also contains folate to help raise folate levels.

What It Treats
abiraterone

Abiraterone is used to treat prostate cancer that has spread to other parts of the body. It is for cancers that are castration-resistant, meaning they no longer respond to hormone therapy alone. It is also used for high-risk castration-sensitive prostate cancer. You will take this medicine with prednisone.

drospirenone/ethinyl estradiol

This medicine can prevent pregnancy. It can also treat symptoms of premenstrual dysphoric disorder (PMDD) if you also want birth control. This medicine can also treat moderate acne in women at least 14 years old who also want birth control.

How It Works
abiraterone

Abiraterone blocks an enzyme called CYP17, which your body needs to make androgens. Androgens can help prostate cancer grow. By blocking this enzyme, abiraterone lowers androgen levels and slows cancer growth.

drospirenone/ethinyl estradiol

This medicine prevents pregnancy by stopping ovulation (the release of an egg from the ovary). It also changes the lining of the uterus, making it harder for a fertilized egg to implant. The folate helps increase folate levels in the body.

Common Side Effects
abiraterone
  • Feeling tired
  • Joint pain
  • High blood pressure
  • Feeling sick to your stomach
  • Swelling
drospirenone/ethinyl estradiol
  • Headache or migraine
  • Irregular periods
  • Nausea or vomiting
  • Breast pain or tenderness
FAERS Reports
abiraterone
  • Death 1,390
  • Feeling tired 1,022
  • Hot flash 678
  • Weakness 562
  • Worsening of disease 561
drospirenone/ethinyl estradiol
  • Pain 13,037
  • Injury 10,860
  • Blood clot in the lungs 9,316
  • Blood clot in a deep vein 8,390
  • Anxiety 6,996
Serious Warnings
abiraterone

Abiraterone can cause problems with mineralocorticoid excess, like high blood pressure, low potassium, and fluid retention. If you have heart problems, your doctor will monitor you closely. This medicine can also cause liver problems, which can be severe. Your doctor will check your liver function regularly. Do not take abiraterone with radium Ra 223 dichloride. Abiraterone can harm an unborn baby, so men should use effective birth control if their partner can get pregnant.

drospirenone/ethinyl estradiol

Cigarette smoking increases your risk of serious heart problems when using birth control pills. This risk is higher if you are over 35 and smoke. Women over 35 who smoke should not use this medicine.

Pregnancy
abiraterone

Abiraterone can cause harm to an unborn baby. Men who are taking abiraterone should use effective birth control during treatment and for 3 weeks after the last dose if their partner is able to get pregnant. It is not known if abiraterone passes into breast milk.

drospirenone/ethinyl estradiol

Do not use this medicine if you are pregnant. This medicine can reduce milk production while breastfeeding. If possible, use other birth control methods until you stop breastfeeding.

Also Compare — Nearby Drugs

How to Read This abiraterone vs drospirenone/ethinyl estradiol Comparison

abiraterone is classified in the CYP17 Inhibitor drug class, while drospirenone/ethinyl estradiol 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, abiraterone has 4,213 submissions while drospirenone/ethinyl estradiol has 48,599. Those figures reflect cumulative reporting volume — not per-patient risk — so older, widely dispensed drugs typically look worse on count alone. No direct interaction between these two drugs is listed in our FDA-derived dataset, though co-prescription still warrants pharmacist review. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.

A table cannot substitute for clinical judgment. Effectiveness, tolerability, drug-drug interactions with your other medications, kidney and liver function, pregnancy status, insurance formulary, and price all feed into a decision that only a licensed prescriber can make responsibly. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This page is for educational purposes only, is not medical advice, and should not be used to self-switch between abiraterone and drospirenone/ethinyl estradiol — always consult your physician or pharmacist first.

Important: This comparison is for informational purposes only. Drug effects vary between individuals. Always consult your doctor or pharmacist for personalized medical advice.