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Bleomycin

Generic name.  

Bleomycin

Family.

Antibiotics

Source.

Streptomyces verticillis (fungus)

Mechanism of action.
  1. DNA breaks: single and double strands.
  2. Free radicals production
Cancer treatment.
  1. Hodgkin Lymphoma- as part of ABVD/ BEACOPP protocols.
  2. Testicular cancer as part of BEP protocol (Bleomycin, Etoposide, Cisplatin).
Side effects.
  1. Lung toxicity: Pulmonary fibrosis.
  2. Skin toxicity: skin color changes (hyper-pigmentation) and rarely ulceration.
  3. Hyperpyrexia (fever)     
Administration.
  1. Intravenous.
  2. rarely used by intrapleural injection
Another information.

Bleomycin is neutralized by aminohydrolase. This enzyme is found in high levels in the gastro-intestinal tract & bone marrow, and hence gastro-intestinal toxicity and bone marrow suppression are rare with this medication. This enzyme is found in low levels in the lungs and skin and hence more toxicity there.

References.
  1. Diehl V. et al. Standard and increased-dose BEACOPP chemotherapy compared with COPP-ABVD for advanced hodgkin's disease. N Engl J Med. 348: 2386-2395 (2003). To read this article press here.
  2. Williams SD. et al. Treatment of disseminated germ-cell tumors with cisplatin, bleomycin, and either vinblastine or etoposide. N Engl J Med. 316: 1435-1440 (1987). To  read this article press here.
  3. Leung WH. et al. Fulminant hyperpyrexia induced by bleomycin. Postgrad Med J. 65: 417-419 (1989). To read this article press here.
  4.   Sleijfer S. Bleomycin induced pneumonitis. Chest. 120: 617-624 (2001). To read this article press here.
 

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