λΆμ€ν
**λΆμ€ν(Busulfan)**μ κ°λ ₯ν **μ΄κ΄λ₯μ± μν¬ν νμ’ μμ **λ‘, μμνμμλ μ£Όλ‘ μλλ¬Όμ **λ§μ± 과립ꡬ λ°±νλ³(CML)** λ° **μ§μ± μ νꡬ μ¦κ°μ¦**μ 보쑰 μΉλ£μ μ¬μ©λ©λλ€. * **μμ μμ ** : μ§μ± μ νꡬ μ¦κ°μ¦μ λν νμ΄λλ‘μμ°λ μμ κ°μ μλ‘μ΄ νμ μΉλ£λ²μ λ±μ₯μΌλ‘ μΌλ°μ μΈ μμ μμμμλ μ μ¬μ©λμ§ μμ§λ§, νΉμ 골μ μ¦μμ± μ§νμ λν΄μλ μ¬μ ν μ ν¨ν μ νμ§μ λλ€. * **μ¬κ°ν 골μ μ΅μ **λ₯Ό μ λ°ν μνμ΄ ν¬λ―λ‘ μ격ν νμ‘νμ λͺ¨λν°λ§μ΄ νμν©λλ€. * λΉ λ₯Έ μ’ μ μ©ν΄ λ° μΈν¬ νκ΄΄λ‘ μΈν΄ νμ² μμ° μμΉκ° μμΉν μ μμΌλ©°, μμ°μ± μ μ₯λ³μ¦μ μλ°©νκΈ° μν΄ μλ‘νΈλ¦¬λμ λ³μ© ν¬μ¬κ° νμν μ μμ΅λλ€.
μμ© κΈ°μ : Busulfan is a **cell cycle-phase nonspecific** alkylating agent. * **Mechanism**: It undergoes intracellular hydrolysis to release methanesulfonate groups β forms reactive carbonium ions β **alkylates DNA** by cross-linking guanine bases on DNA strands. * **Pathway**: DNA cross-linking β inhibition of DNA replication and RNA transcription β **apoptosis** (programmed cell death). * **Target**: It exhibits highly selective toxicity toward cells of the **granulocytic series** and myeloid precursors in the bone marrow, making it particularly effective against myeloproliferative diseases.
λλ¬Ό μ’ λ³ μ©λ
- Adjunctive therapy of chronic granulocytic leukemias or polycythemia vera Β· 2-4 mg/m2 Β· PO Β· once daily Β· NOT mg/kg. Rarely used in veterinary medicine.
- Adjunctive therapy of chronic granulocytic leukemias or polycythemia vera Β· 2-4 mg/m2 Β· PO Β· once daily Β· NOT mg/kg. Rarely used in veterinary medicine.
μ©λμ λ©΄ν μμ μ λ¬Έκ°λ₯Ό μν μμ μ°Έκ³ μλ£μ λλ€. νμ μ΅μ λΌλ²¨κ³Ό κ°λ³ νμμ λν΄ νμΈνμμμ€.
ν¬μ¬ κ²½λ‘
κΈκΈ°
- Patients with known hypersensitivity to busulfan
- Patients who have shown resistance to the drug in the past
- Pregnancy (FDA Category D), unless potential benefits outweigh the risks
- Nursing dams
μ΄μλ°μ
- Myelosuppression (anemia, leukopenia, thrombocytopenia)
- Pancytopenia (can take months to years for recovery)
- Bronchopulmonary dysplasia with pulmonary fibrosis (uncommon, chronic use)
- Uric acid nephropathy
- Stomatitis
μ½λ¬Ό μνΈμμ©
- Acetaminophen Β· Use within 72 hours prior to busulfan can reduce busulfan clearance by reducing glutathione concentrations in tissues and blood.
- Cyclophosphamide Β· Can potentially reduce clearance of busulfan, probably by competing for available glutathione.
- Itraconazole Β· Potential decreased busulfan clearance.
- Myelosuppressant agents Β· Concurrent use with other bone marrow depressant medications may result in additive myelosuppression.
- Phenytoin Β· Possible increased clearance of busulfan.
- Thioguanine Β· Used concomitantly with busulfan may result in hepatotoxicity.
λͺ¨λν°λ§
- CBC (Complete Blood Count)
- Serum uric acid
- Clinical efficacy
κ³Όμ©λ
There is limited experience with busulfan overdoses. The LD50 in mice is 120 mg/kg. * **Chronic vs Acute**: Chronic overdosage is more likely to cause serious bone marrow suppression than is an acute overdose. * **Treatment**: Any overdose should be treated seriously with standard gut emptying protocols used when appropriate and supportive therapy initiated when required. * **Antidote**: There is no known specific antidote for busulfan intoxication.
VetSheet μ½λ¬Ό λ νΌλ°μ€λ λ©΄ν μμ μ λ¬Έκ°λ₯Ό μν μμ μμ¬κ²°μ 보쑰 λꡬμ΄λ©°, μ λ¬Έμ νλ¨μ΄λ μ μ‘°μ¬μ μ΅μ λΌλ²¨μ λμ νμ§ μμ΅λλ€.