goserelin vs leuprolide
Side-by-side comparison of goserelin and leuprolide Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
Zoladex
Lupron
Zoladex is a medicine that contains goserelin. It is used to treat certain cancers and other health problems by changing hormone levels in your body.
VABRINTY is a medicine that treats advanced prostate cancer. It contains leuprolide, which lowers testosterone levels.
Zoladex, along with flutamide, can treat prostate cancer that has not spread far. It can also help with advanced prostate cancer to ease symptoms. For women, Zoladex can treat endometriosis to reduce pain and lesions. It can also thin the lining of the uterus before a procedure for abnormal bleeding. Zoladex can also treat advanced breast cancer in women who have not gone through menopause.
VABRINTY treats advanced prostate cancer in men. Prostate cancer is when cells in the prostate gland grow out of control. This medicine helps to slow down the growth of the cancer.
Zoladex is a GnRH agonist. It works by lowering the amount of certain hormones, like testosterone or estrogen, in your body. This can help to slow down the growth of cancer cells or reduce the symptoms of other conditions.
VABRINTY contains leuprolide, which is a GnRH agonist. It lowers the amount of testosterone your body makes. This can help to slow the growth of prostate cancer cells.
- • Hot flashes
- • Sexual problems
- • Less firm erections
- • Lower urinary tract symptoms
- • Headache
- • Feeling tired or weak
- • Hot flashes or sweats
- • Testicles shrinking
- Death 1,567
- Cancer getting worse 1,284
- Tiredness 837
- Cancer spreading to the bones 674
- Low white blood cell count 608
- The medicine is not working 106
- Feeling tired 82
- Using the medicine for something it's not approved for 67
- Feeling sick to your stomach 61
- Pain in your head 58
Zoladex can cause a temporary worsening of tumor symptoms at the start of treatment. This may include problems with your kidneys or spinal cord. If you have diabetes, Zoladex may raise your blood sugar. Zoladex may increase the risk of heart attack, stroke, or sudden death. Zoladex can also cause severe skin reactions. Tell your doctor right away if you notice any signs of a severe skin reaction.
VABRINTY can cause a temporary increase in testosterone levels, which may worsen symptoms at first. This could include bone pain, nerve problems, or trouble urinating. VABRINTY may also increase your risk of high blood sugar, diabetes, heart problems, and seizures. Tell your doctor right away if you have signs of a severe skin reaction.
You should not take Zoladex if you are pregnant, unless it is for breast cancer treatment. Zoladex can harm your unborn baby, so use birth control while taking it and for 12 weeks after stopping. It is not known if Zoladex passes into breast milk, so talk to your doctor about breastfeeding.
VABRINTY can harm an unborn baby. Females should not take VABRINTY if they are pregnant or may become pregnant. It is not known if VABRINTY passes into breast milk, so talk to your doctor about breastfeeding.
How to Read This goserelin vs leuprolide Comparison
goserelin is classified in the GnRH Agonist drug class, while leuprolide sits within the GnRH Agonist class. Because both drugs share the same classification, they are often considered interchangeable in theory — but clinical outcomes rarely track that cleanly. 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, goserelin has 4,970 submissions while leuprolide has 374. 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 goserelin and leuprolide — 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.