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rand breaks in DNA Antibiotics ? Bleomycin Site of action: DNAbleomycinFe++ DNAbleomycinFe+++ Superoxide and hydroxyl radicals Strand breaks in DNA Adverse effects: Pulmonary toxicity Alkylating agents ? Mechlorethamine ? Cyclophosphamide and ifosfamide ? Nitrosoureas Alkylating agents ? Mechlorethamine ? Cyclophosphamide and ifosfamide ? Nitrosoureas Microtubule inhibitors ? Vincristine and vinblastine Microtubule inhibitors ? Paclitaxel Steroid hormones and their antagonists ? Prednisone ? Tamoxifen ? Estrogens ? Leuprolide and goserelin ? Flutamide ? Aminoglutethimide Steroid hormones and their antagonists Steroid hormones and their antagonists ? Tamoxifen Other chemotherapeutic agents ? Cisplatin and carboplatin ? Et