Overdoses have been reported in patients being treated with intravenous topotecan (up to 10 fold of the recommended dose) and topotecan capsules (up to 5 fold of the recommended dose). The signs and symptoms observed following overdose were consistent with the known undesirable events associated with topotecan (see Adverse Reactions). The primary complications of overdose are bone marrow suppression and mucositis. In addition, elevated hepatic enzymes have been reported with intravenous topotecan overdose.
There is no known antidote for topotecan overdose. Further management should be as clinically indicated or as recommended by the national poisons center, where available.
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