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Hydroxyurea

Hydroxyurea 500MG

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What is Hydroxyurea?

Hydrea is a prescription medicine used to treat chronic myeloid leukemia. Hydroxyurea is the generic version of Hydrea. The average price of Hydrea is around $151 for a supply of 100, 500 mg capsules. Use our Rx.com savings offer to get an average Hydrea discount of up to 80% at participating pharmacies near you.

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What is Hydroxyurea ?

Hydrea is a prescription medicine used to treat chronic myeloid leukemia. Hydroxyurea is the generic version of Hydrea. The average price of Hydrea is around $151 for a supply of 100, 500 mg capsules. Use our Rx.com savings offer to get an average Hydrea discount of up to 80% at participating pharmacies near you.
  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
  • Unusual bleeding, bruising, or weakness
  • Trouble breathing, tiredness, uneven heartbeat, yellow skin or eyes
  • Skin sores or ulcers, red or purple bumps
  • Fever, chills, cough, sore throat, body aches
  • Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.
  • Keep all medicine out of the reach of children. Never share your medicine with anyone.
  • This medicine may make you bleed, bruise, or get infections more easily. Take precautions to prevent illness and injury. Wash your hands often.
  • Tell any doctor or dentist who treats you that you are using this medicine. This medicine may affect certain medical test results.
  • This medicine may cause the following problems:Blood problem, including hemolytic anemiaIncreased risk of cancer, including leukemia or skin cancerSevere skin ulcersIncreased risk of lung or breathing problems
  • This medicine may make your skin more sensitive to sunlight. Wear sunscreen. Do not use sunlamps or tanning beds.
  • Oral routeThis medicine may cause birth defects if either partner is using it during conception or pregnancy. Tell your doctor right away if you or your partner becomes pregnant. If you are a woman who can get pregnant, your doctor may do tests to make sure you are not pregnant before starting this medicine. Use an effective form of birth control during treatment with this medicine and for at least 6 months after the last dose. Male patients with female partners should use an effective form of birth control during treatment and for at least 1 year for Droxia® and Hydrea® and at least 6 months for Siklos® after the last dose.
  • Do not breastfeed while you are using this medicine.
  • Tell your doctor if you have kidney disease, liver disease, bone marrow problems, leg ulcers, lung disease, or HIV infection.
  • Oral routeMedicines used to treat cancer are very strong and can have many side effects. Before receiving this medicine, make sure you understand all the risks and benefits. It is important for you to work closely with your doctor during your treatment.
  • Talk with your doctor before using this medicine if you plan to have children. Some men who use this medicine have become infertile (unable to have children).
What is hydroxyurea used for?
Hydroxyurea is FDA-approved to reduce the frequency of painful crises and the need for blood transfusions in adults and children with sickle cell anemia, to treat resistant chronic myelogenous leukemia (CML), and, given together with radiation, to treat certain head and neck cancers. Your prescriber can explain why it was chosen for you.
Is hydroxyurea a form of chemotherapy?
Yes. Hydroxyurea is an antineoplastic (anti-cancer) drug in the antimetabolite class that works by blocking an enzyme cells need to make DNA. Even when it is used to help manage sickle cell disease rather than cancer, it is still a chemotherapy-type medicine, which is why careful monitoring is needed.
What are the most serious side effects of hydroxyurea?
The most serious risks appear in hydroxyurea's boxed warnings: severe bone marrow suppression that can cause dangerously low blood cell counts, and a higher risk of secondary cancers (including certain leukemias and skin cancer) with long-term use. It can also harm an unborn baby. Report fever, unusual bleeding or bruising, or new skin changes to your provider right away.
How long does it take for hydroxyurea to start working in sickle cell disease?
Hydroxyurea is not a fast-acting medicine. It is taken every day, and the dose is gradually adjusted based on your blood test results, so it can take weeks to months of steady use before the full benefit on painful crises is seen. Keep taking it as prescribed even if you do not notice a change right away, and follow your care team's monitoring schedule.
Do you need regular blood tests while taking hydroxyurea?
Yes. Because hydroxyurea can severely lower blood cell counts, your provider will check your blood counts before you start and monitor them regularly throughout treatment, adjusting or pausing the dose as needed. Do not skip these lab appointments, as they are a key part of using the medicine safely.
How much does Hydroxyurea cost without insurance?
The price of Hydroxyurea without insurance varies by pharmacy, dosage, and quantity. Rx.com compares cash prices at more than 60,000 US pharmacies so you can find the lowest price near you. Many people save up to 83% off retail prices with a free Rx.com coupon.
What are the common side effects of Hydroxyurea?
Common side effects of Hydroxyurea may include: Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing, Unusual bleeding, bruising, or weakness, Trouble breathing, tiredness, uneven heartbeat, yellow skin or eyes, Skin sores or ulcers, red or purple bumps, Fever, chills, cough, sore throat, body aches. This is not a complete list — consult your pharmacist or doctor for full side effect information.
Is there a generic version of Hydroxyurea?
Generic versions may be available for Hydroxyurea. Generics contain the same active ingredients as brand-name drugs and are typically 80–90% cheaper. Search Hydroxyurea on Rx.com to compare generic and brand prices at pharmacies near you.
What is the cheapest pharmacy for Hydroxyurea?
The cheapest pharmacy for Hydroxyurea depends on your location and dosage. Rx.com compares prices at CVS, Walgreens, Walmart, Kroger, Costco, and thousands of independent pharmacies. Enter your ZIP code on Rx.com to find the lowest price for Hydroxyurea near you.

Hydroxyurea Coupons & Prices

Hydroxyurea 500MG

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Hydroxyurea Capsule — prescription drug image
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Looking for a hydroxyurea coupon? Hydroxyurea is an inexpensive generic medicine, but the cash price can still vary widely from one pharmacy to the next, so it pays to compare before you fill. Rx.com checks hydroxyurea prices across more than 60,000 pharmacies so you can find a low price near you and use a free discount coupon at the counter, with or without insurance. Enter your ZIP above to see today's price on hydroxyurea capsules and tablets.

What is hydroxyurea and how does it work?

Hydroxyurea is an antineoplastic (anti-cancer) medicine in a class called antimetabolites. It works as a ribonucleotide reductase inhibitor, which blocks an enzyme cells need to make DNA and slows the production of certain blood cells. It is FDA-approved to reduce the frequency of painful crises and the need for blood transfusions in adults (sold as Droxia) and in children (sold as Siklos) with sickle cell anemia, to treat resistant chronic myelogenous leukemia (CML), and, given together with radiation, to treat certain head and neck cancers (sold as Hydrea).

Hydroxyurea is taken by mouth, usually once a day, and your dose is adjusted based on how you respond and on your blood test results. This page is educational only and is not medical advice; use hydroxyurea exactly as your prescriber directs.

How much does hydroxyurea cost without insurance?

Hydroxyurea is available as an FDA-approved generic, so it is generally one of the more affordable medications in its class. Even so, the cash price is not the same everywhere. Because pharmacies set their own prices, the amount you would pay without insurance can differ significantly between two stores in the same town, which is exactly why comparing is worth the few seconds it takes.

Rx.com compares hydroxyurea prices across more than 60,000 U.S. pharmacies and shows you a free discount coupon you can use whether or not you have insurance. Enter your ZIP above to see today's price near you. Hydroxyurea does not have a manufacturer copay savings card, so a pharmacy discount coupon is often the simplest way to lower the cash price on the generic.

Brand versions and related medicines

Hydroxyurea is the active ingredient in several brand-name products, and the generic is substitutable for them at the pharmacy. Related pages you may find helpful include Hydrea (used with radiation for certain head and neck cancers and for resistant CML) and Siklos (the tablet approved for sickle cell disease in children). Because these are all forms of the same drug, the generic is usually the lowest-cost way to fill the prescription.

For sickle cell disease, hydroxyurea is often part of a broader treatment plan. Another oral option your care team may discuss is Endari (L-glutamine). These medicines work differently and are not interchangeable, so which one is right for you is a decision for your hematologist.

Hydroxyurea safety and monitoring

Hydroxyurea carries FDA boxed warnings. It can cause severe myelosuppression, meaning dangerously low white cell, red cell, and platelet counts, so your provider will check your blood counts before you start and monitor them throughout treatment; it should not be started if your bone marrow function is already markedly reduced. The boxed warning also notes that hydroxyurea is carcinogenic with long-term use, raising the risk of secondary leukemias and skin cancer, so sun protection and regular skin checks are advised.

Hydroxyurea can also cause serious harm to an unborn baby, so effective contraception is advised for both women and men of reproductive potential. Other possible effects include skin (vasculitic) toxicities and leg ulcers, enlarged red blood cells (macrocytosis), and a higher risk of infection. This is not a complete list; talk with your provider or pharmacist about your full health history and any other medicines you take.

Sources & accuracy

This Hydroxyurea information was written and reviewed against authoritative U.S. medical sources — MedlinePlus (U.S. National Library of Medicine), DailyMed, and FDA prescribing information — and checked for accuracy. It is provided for education and is not a substitute for professional medical advice.

Verify the official label: Hydroxyurea on DailyMed (FDA)

Reviewed against FDA labeling · Last reviewed July 2026

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Medical disclaimer: This information is provided for general educational purposes only and is not medical advice. It is not a substitute for professional diagnosis or treatment. Always consult a licensed physician, pharmacist, or other qualified healthcare provider before starting, stopping, or changing any medication or treatment. Never disregard professional medical advice or delay seeking it because of something you read here. If you think you may have a medical emergency, call your doctor or 911 immediately.


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