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Product Details

What is Myleran?

What is Myleran?

Myleran is a prescription medicine approved to treat chronic myelogenous leukemia (CML). It may be used for other off-label purposes at a doctor’s discretion. The medication contains busulfan as its active ingredient, a member of the class of drugs known as alkylating agents. It works by binding to the DNA of cancer cells, which stops them from growing and multiplying.

It may also help in certain pre-transplant conditioning regimens before stem cell or bone marrow transplantation (though intravenous formulations of busulfan are more commonly used for this purpose). Since it targets rapidly dividing cells, it may also affect healthy bone marrow cells.

Quick Facts About Myleran

Quick Facts About Myleran

Product NameMyleran
Active IngredientBusulfan
Drug ClassAlkylating agents
Available FormsOral tablets
Strengths Available2 mg
Routes of AdministrationTaken by mouth
Myleran UsesUsed to treat: Chronic Myelogenous Leukemia (CML)
Myleran StorageStore in a cool, dry place (below 30°C)
Pregnancy and BreastfeedingConsult a doctor
Legal StatusRx only
FDA Black Box WarningSevere Bone Marrow Suppression (Myelosuppression)

Increased Risk of Secondary Malignancies

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What Is Myleran Used For?

What Is Myleran Used For?

Myleran is FDA-approved to treat:

  • Chronic Myelogenous Leukemia (CML)
How Does Myleran Work?

How Does Myleran Work?

Myleran (busulfan) works by forming strong chemical links between DNA strands. This DNA cross-linking disrupts replication and transcription of RNA, leading to cell death, especially in rapidly dividing cancer cells. Because it affects DNA, it can also damage normal rapidly dividing cells (like bone marrow cells), which is why close monitoring is crucial.

What Are the Precautions of Myleran?

What Are the Precautions of Myleran?

Keep the following Myleran precautions in mind before taking the tablets:

  • Myleran can cause severe bone marrow suppression, leading to low red blood cell, white blood cell, and platelet counts; regular blood tests are essential during treatment.
  • Seek medical help immediately if you experience symptoms such as chills, fever, persistent cough, or a sore throat.
  • Avoid close contact with people who are sick and maintain strict hygiene to reduce the risk of infection.
  • Use caution if you experience bleeding gums, black stools, unusual bruising, or extreme fatigue, as these may indicate low blood counts.
  • Lung complications, including pulmonary fibrosis, may occur with long-term use; seek medical help if you develop a persistent cough or shortness of breath.
  • Long-term use of Myleran may increase the risk of secondary cancers.
  • Myleran may cause serious liver toxicity, including veno-occlusive disease. Consult your doctor immediately if you experience symptoms such as yellowing of the skin or eyes, abdominal pain, or sudden weight gain.
  • Breastfeeding and pregnant women should always consult a doctor before starting the treatment.
  • The medication may cause temporary or permanent infertility in both females and males.
  • Use cautiously if you have a history of lung disease, liver disease, seizures, or prior chemotherapy/radiation therapy.

Note: Discuss vaccines with your doctor.

FDA Black Box Warning for Myleran

FDA Black Box Warning for Myleran

Myleran Boxed Warning:

  • Severe Bone Marrow Suppression (Myelosuppression)
  • Increased Risk of Secondary Malignancies
What Are the Side Effects of Myleran?

What Are the Side Effects of Myleran?

Like other chemotherapy drugs, Myleran may cause side effects.

Common Side Effects of Myleran

  • Mouth sores
  • Vomiting
  • Nausea
  • Diarrhea
  • Fatigue
  • Anemia
  • Leukopenia

Serious or Rare Side Effects of Myleran

  • Severe liver complications
  • Pneumonitis or fibrosis
  • Skin pigmentation
  • Infertility
  • Difficulty breathing
  • Severe abdominal pain
  • Chills
  • Fever
Who Should Not Take Myleran?

Who Should Not Take Myleran?

Consult your doctor if you experience any serious or unusual symptoms. Myleran should not be used in patients who have:

  • Patients with severely suppressed bone marrow function.
  • Known hypersensitivity or allergic reactions to busulfan.
  • Myleran is not recommended during pregnancy or breastfeeding.

Myleran tablets should only be used under the supervision of a healthcare professional who is experienced in cancer chemotherapy. Risks and benefits should be carefully evaluated.

How to Take Myleran Tablets?

How to Take Myleran Tablets?

Myleran 2 mg tablets should always be taken after consulting your doctor. The dosage guide of Myleran (busulfan) is as follows:

FDA-Approved Dosage of Myleran (Busulfan) 2 mg Tablets for Chronic Myelogenous Leukemia (CML)

Phase of the TreatmentDosageAdministrationMonitoring & Important Notes
Initial (Induction) Therapy0.06 mg/kg/day (Maximum 4 mg/day)Oral, usually as a single daily doseMonitor regular blood tests (CBC) at least weekly. Continue until white blood cell (WBC) levels fall to approximately 15,000–25,000 cells/mm³ (typically at 12–20 weeks).
Therapy Interruption-Temporarily stop treatmentInterrupt if WBC falls below 15,000 cells/mm³. Closely monitor blood counts to avoid severe myelosuppression.
Maintenance TherapyTypically 1–3 mg/day (individualized)Oral, single daily doseRestart when white blood cell count rises (often near 50,000 cells/mm³). Adjust dose based on hematologic response.
Dose Adjustment ConsiderationBased on blood countsTablets are 2 mg and should not be splitWhen lower average daily doses are required, alternate-day dosing may be used instead of tablet splitting.

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Important: Myleran treatment requires strict medical supervision with regular hematologic monitoring to prevent severe bone marrow suppression.

What Happens If You Take Too Much Myleran?

What Happens If You Take Too Much Myleran?

If you have taken too many Myleran doses, seek medical help immediately. Symptoms of overdose may include severe bone marrow suppression. Contact your local Poison Control Center if you suspect Myleran overdose.

What to Do If You Miss Myleran Tablets?

What to Do If You Miss Myleran Tablets?

If your doctor has prescribed Myleran, you should follow the medication regimen as directed. If you miss a dose of Myleran, you should:

  • Take it as soon as possible.
  • If it is time for your next scheduled dose, follow your usual routine.
  • Do not double your dose to make up for a missed one.
How to Store Myleran?

How to Store Myleran?

Keep the following Myleran storage guidelines in mind:

  • Store the medicine at a controlled room temperature between 15°C and 25°C (59°F and 77°F).
  • Keep the medicine in its original form.
  • Keep it in a dry place, away from direct sunlight and moisture.
  • Do not freeze.
  • Keep the container tightly closed.
  • Keep out of reach of children and pets.
What Medications Interact with Myleran?

What Medications Interact with Myleran?

There are several chemotherapy medications that should not be taken with other medicines. The following list shows some of the Myleran interactions:

  • Acetaminophen
  • Abrocitinib
  • Adalimumab
  • Baricitinib
  • Acetaminophen
  • Itraconazole
  • Phenytoin
  • Myelosuppressives
  • Thioguanine
  • Boceprevir
  • Adenovirus vaccine
  • Allopurinol
  • Cabazitaxel
  • Alemtuzumab
  • Aldesleukin
  • Alefacept
  • Cemiplimab
What Are the Alternatives to Myleran?

What Are the Alternatives to Myleran?

For patients who cannot take Myleran, doctors may prescribe alternative medications. The following are the Myleran alternatives that you can take after consulting your healthcare professional:

  • Gleevec
  • Sprycel
  • Bosulif
  • Synribo
  • Tasigna
  • Iclusig
  • Hydrea
  • Busulfex
Why Buy Myleran Online from Polar Bear Meds?

Why Buy Myleran Online from Polar Bear Meds?

Myleran can be costly when purchased from local U.S. pharmacies, especially for patients who require long-term treatment for chronic myelogenous leukemia (CML). At Polar Bear Meds, we help you access your prescribed medications at more affordable prices by sourcing them through fully licensed Canadian and international pharmacy partners.

When you choose to buy Myleran online from Polar Bear Meds, you may benefit from significantly lower pricing compared to many U.S. retail pharmacies — often saving a substantial percentage on your medication costs while maintaining standard pharmacy dispensing practices.

Here’s why patients trust Polar Bear Meds for their Myleran prescription:

  • Competitive pricing on genuine, pharmacy-dispensed Myleran.
  • Exclusive savings opportunities, including a Myleran coupon code for additional discounts on your first order.
  • Fast and secure shipping, with most orders delivered within 3–5 business days via reliable postal services (Xpress Post).

At Polar Bear Meds, your safety and satisfaction come first. Every order is processed through licensed pharmacy partners to ensure you receive authentic Myleran medicine as prescribed by your healthcare professional. If you are seeking a trusted, affordable way to buy Myleran online, Polar Bear Meds offers a secure and cost-effective solution tailored to your needs.

Important Disclaimer

Important Disclaimer

The content provided about Myleran is for informational and educational purposes only and is not intended to replace professional medical advice, diagnosis, or treatment. Myleran (busulfan) is a prescription-based medicine and should be used only under the supervision of a healthcare professional. Always consult your doctor before changing or stopping your Myleran tablets.

Myleran Frequently Asked Questions

Myleran Frequently Asked Questions

Dr. Jackson Miller

Medically Reviewed by Dr. Jackson Miller (M.D)

Dr. Jackson Miller is a board-certified medicine physician & hospitalist. He is a healthcare professional with a strong background in patient care. With years of experience and a patient-first approach, he believes the foundation of good health is a patient who feels informed and empowered. He contributes to medical content review, drawing on his background in clinical practice and patient education. He focuses on presenting health information in a clear, accurate, and accessible way to help readers make informed decisions. His work emphasizes clarity, evidence-based guidance, and understandable explanations of medical topics.

Find Dr. Jackson Miller on:LinkedIn

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