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Active Pharma Ingredients / 02 Sep 2026

ATRIMUSTINE

Generic Name: ATRIMUSTINE

ABSTRACT -

Atrimustine, also known as bestrabucil or busramustine, is an estradiol-chlorambucil conjugate antineoplastic agent. It combines an estrogenic targeting concept with a nitrogen-mustard alkylating component and has been investigated in cancer settings. It has molecular formula C41H47Cl2NO6.

This document is for structured API information only. It is not a prescribing guide. Clinical use, if any, must follow the approved local label, trial protocol, and specialist medical supervision.

DOSAGE -

  • Dosage should be determined only by a qualified oncology specialist.
  • No routine approved dosing regimen is established for general current use.
  • Administration should follow oncology protocol requirements for cytotoxic agents.
  • Do not use outside supervised cancer care.

SIDE EFFECTS-

Possible side effects and safety concerns include:

  • Nausea, vomiting, diarrhea, mucositis, or appetite loss
  • Myelosuppression including neutropenia, anemia, or thrombocytopenia
  • Fatigue, weakness, infection risk, or bleeding tendency
  • Estrogenic effects such as fluid retention or breast tenderness may occur
  • Serious allergic reactions are possible.

ALLERGIC REACTIONS -

Hypersensitivity to Atrimustine or related compounds/products may occur. Symptoms may include:

  • Immediate urticaria or generalized rash
  • Facial, lip, tongue, or throat swelling
  • Wheezing or breathing difficulty
  • Dizziness, collapse, or anaphylaxis

Important: Patients who develop an allergic reaction to Atrimustine should seek immediate medical attention and inform all future healthcare providers of the allergy.

DRUG INTERACTIONS-

Atrimustine may interact with certain medicines, protocols, vaccines, clinical conditions, or procedures. Caution is needed with:

  • Other cytotoxic chemotherapy or radiation can increase myelosuppression.
  • Anticoagulants or antiplatelet agents may increase bleeding risk when platelets are low.
  • Hormonal therapies may alter estrogen-related risk assessment.
  • Live vaccines should be avoided during significant immunosuppression.

Patients should inform healthcare providers about all prescription medicines, over-the-counter medicines, herbal products, vaccines, and supplements they are using.

PREAUTIONS–

  • Monitor complete blood counts, liver function, renal function, and infection signs.
  • Assess thromboembolic risk and estrogen-sensitive conditions.
  • Use contraception; alkylating agents may cause fetal harm.
  • Use handling precautions appropriate for cytotoxic drugs.

WARNINGS –

  • Cytotoxic alkylating agent: severe myelosuppression and infection can occur.
  • May cause fetal harm and fertility effects.
  • Fever, bleeding, severe diarrhea, or shortness of breath requires urgent care.
  • Keep out of reach of children.

Have any questions? or Need help Contact us – 022 6163 6163 | support@medicus.com

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