Overdosage information with VANIQA (eflornithine) is unavailable. Given the low percutaneous penetration of this drug, overdosage via the topical route is not expected (see CLINICAL PHARMACOLOGY). However, should very high topical doses (e.g., multiple tubes per day) or oral ingestion be encountered (a 30 g tube contains 4.2 g of eflornithine hydrochloride), the patient should be monitored, and appropriate supportive measures administered as necessary.

(Note: Use of an intravenous formulation of eflornithine hydrochloride at high doses (400 mg/kg/day or approximately 24 g/day) for the treatment of Trypanosoma brucei gambiense infection (African sleeping sickness) has been associated with adverse events and laboratory abnormalities. Adverse events in this setting have included hair loss, facial swelling, seizures, hearing impairment, stomach upset, loss of appetite, headache, weakness and dizziness. A variety of hematological toxicities, including anemia, thrombocytopenia and leukopenia have also been observed, but these were usually reversible upon discontinuation of treatment.)

VANIQA (eflornithine) is contraindicated in patients with a history of sensitivity to any components of the preparation.

Last reviewed on RxList: 5/12/2008
This monograph has been modified to include the generic and brand name in many instances.