<prompt> All are true about Busulfan exceptIt is an alkylating anti neoplastic drugIt can result in Addinsons diseaseIt can also cause veno occlusive disease of liverIt can lead to pulmonary fibrosis, characterized by necrosis of Type 2 pneumocytes  <response>: Busulfan can lead to pulmonary fibrosis, characterized by necrosis of Type1 pneumocytes and compensatory proliferation of Type 2 pneumocytes. 