"The U.S. Food and Drug Administration today approved Gazyva (obinutuzumab) for use in combination with chlorambucil to treat patients with previously untreated chronic lymphocytic leukemia (CLL).
CLL is a blood and bone ma"...
There is no known antidote to busulfan. The principal toxic effects are bone marrow depression and pancytopenia. The hematologic status should be closely monitored and vigorous supportive measures instituted if necessary. Induction of vomiting or gastric lavage followed by administration of charcoal would be indicated if ingestion were recent. Dialysis may be considered in the management of overdose as there is 1 report of successful dialysis of busulfan (see CLINICAL PHARMACOLOGY).
Oral LD50 single doses in mice are 120 mg/kg. Two distinct types of toxic response are seen at median lethal doses given intraperitoneally. Within a matter of hours there are signs of stimulation of the central nervous system with convulsions and death on the first day. Mice are more sensitive to this effect than are rats. With doses at the LD50 there is also delayed death due to damage to the bone marrow. At 3 times the LD50, atrophy of the mucosa of the large intestine is found after a week, whereas that of the small intestine is little affected. After doses in the order of 10 times those used therapeutically were added to the diet of rats, irreversible cataracts were produced after several weeks. Small doses had no such effect.
MYLERAN is contraindicated in patients in whom a definitive diagnosis of chronic myelogenous leukemia has not been firmly established.
MYLERAN is contraindicated in patients who have previously suffered a hypersensitivity reaction to busulfan or any other component of the preparation.
Last reviewed on RxList: 9/16/2008
This monograph has been modified to include the generic and brand name in many instances.
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