Product image of Leukeran (Chlorambucil) supplied by GNH India

Leukeran

Active Ingredient:
Chlorambucil
Origin:
EU

Leukeran (Chlorambucil)

Chlorambucil, the active ingredient in Leukeran, is an alkylating agent (nitrogen mustard) presented as an oral formulation for oral use. It is employed in the treatment of certain hematologic malignancies, including chronic lymphocytic leukemia and various lymphomas, in adult patients.

GNH India supplies Leukeran as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, oncology centres, pharmacies and clinics worldwide, with established quality‑assured distribution channels and regulatory compliance across EU and other markets. The company ensures product integrity through rigorous testing and secure logistics.

Manufacturer / TM Owner

Aspen Pharma Trading Limited

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Indications & Clinical Uses

Leukeran (chlorambucil) is used in the management of hematologic cancers, primarily targeting malignant lymphoid and myeloid cells.

  • Chronic lymphocytic leukemia (CLL): reduces disease progression and prolongs survival in adult patients.
  • Hodgkin's lymphoma: contributes to remission when used as part of combination chemotherapy regimens.
  • Non‑Hodgkin's lymphoma: provides disease control in selected indolent subtypes.
  • Chronic myelogenous leukemia (CML) (off‑label): may be employed in patients intolerant to standard tyrosine‑kinase inhibitors.

How It Works

  • Chlorambucil exerts its antineoplastic activity by alkylating nucleophilic sites on DNA, primarily the N7 position of guanine. This creates intra‑ and interstrand cross‑links that impede DNA replication and transcription, ultimately triggering apoptosis in rapidly dividing malignant cells. The drug’s nitrogen‑mustard moiety enables irreversible binding to DNA, leading to cell cycle arrest. The resulting DNA damage activates cellular repair mechanisms that are overwhelmed in cancer cells, enhancing cytotoxicity.

Side Effects

Chlorambucil may cause a range of adverse reactions, varying from mild to potentially life‑threatening.

Common Side Effects

  • Nausea and vomiting: mild to moderate gastrointestinal upset.
  • Myelosuppression: decreased white blood cells, anemia, or thrombocytopenia.
  • Fatigue: generalized tiredness affecting daily activities.
  • Alopecia: temporary hair loss.
  • Mucositis: inflammation of the mouth lining.

Serious or Rare Side Effects

  • Secondary malignancies: increased risk of therapy‑related cancers.
  • Severe infections: due to profound neutropenia.
  • Pulmonary toxicity: interstitial pneumonitis or fibrosis.
  • Hepatotoxicity: elevated liver enzymes or hepatic dysfunction.

Precautions & Warnings

When prescribing chlorambucil, clinicians should observe several safety precautions to minimize risks.

  • Baseline blood counts: obtain complete blood count before initiating therapy.
  • Renal function: assess creatinine clearance and adjust if impairment is present.
  • Hepatic function: monitor liver enzymes periodically during treatment.
  • Pregnancy: avoid use in pregnant women; discuss contraception with women of childbearing potential.
  • Drug interactions: review concomitant medications for potential additive myelosuppression.
  • Store at ambient temperature: keep tablets in original container, protect from moisture and light.

Avoid Interactions

Chlorambucil can interact with other medicines, influencing its efficacy or toxicity.

Major Interactions (Avoid)

  • Antimetabolites (e.g., methotrexate): combined use markedly increases myelosuppression.
  • Live vaccines: heightened risk of infection due to immunosuppression.

Moderate Interactions (Monitor Closely)

  • CYP2C9 inhibitors (e.g., fluconazole): may raise chlorambucil plasma levels.
  • Anticoagulants (e.g., warfarin): enhanced bleeding risk from platelet suppression.
  • Allopurinol: can potentiate bone marrow toxicity.

Frequently Asked Questions

Leukeran contains chlorambucil, an alkylating chemotherapy agent indicated for the treatment of certain blood cancers such as chronic lymphocytic leukemia, Hodgkin's lymphoma and non‑Hodgkin's lymphoma. It works by interfering with DNA replication in malignant cells, helping to control disease progression.

Chlorambucil belongs to the nitrogen‑mustard class of alkylating agents. It binds covalently to DNA, forming cross‑links that block replication and transcription. The resulting DNA damage triggers apoptosis, especially in rapidly dividing cancer cells, thereby reducing tumor burden.

The dosage of Leukeran is individualized and determined by the prescribing physician based on the specific indication, disease stage, patient weight, renal and hepatic function, and other clinical factors. Patients should follow the exact regimen provided by their healthcare professional.

Chlorambucil is classified as contraindicated in pregnancy because it can cause fetal harm. Women of childbearing potential should use effective contraception during treatment and for a period after the last dose. Breastfeeding is not recommended, as the drug may be excreted in milk and affect the infant.

To request Leukeran, submit an enquiry on the product page at gnhindia.com, specifying the required quantity. GNH India works with hospitals, pharmacies and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details (including any cold‑chain needs) and required import documentation.

Compared with agents such as cyclophosphamide, chlorambucil has a longer half‑life and is administered orally, offering convenience for chronic therapy. Its toxicity profile includes notable myelosuppression, but it may be preferred in certain indolent lymphoid malignancies where oral dosing aligns with outpatient management.

Leukeran tablets should be stored at ambient temperature, below 25 °C, in the original container to protect them from moisture and light. Keep the product out of reach of children and avoid storing in bathrooms or other humid environments.

Leukeran is supplied as oral tablets. Patients should swallow the tablets whole with a full glass of water, preferably on an empty stomach unless directed otherwise by the prescriber. The exact schedule—daily, weekly or cyclic—depends on the treatment plan set by the oncologist.

The most critical adverse effects include severe myelosuppression leading to infections, anemia or bleeding; secondary malignancies such as therapy‑related leukemia; and organ toxicities like pulmonary fibrosis or liver injury. Patients should report fever, persistent cough, unusual bruising or signs of liver dysfunction promptly.

Leukeran is contraindicated in patients with known hypersensitivity to chlorambucil or other nitrogen‑mustard agents, in pregnant women, and in individuals with severe bone‑marrow failure. Caution is also advised for patients with significant renal or hepatic impairment, as dose adjustments may be required.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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