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Trisenox (Arsenic Trioxide) - Drug Interactions, Contraindications, Overdosage, etc



Drug Interactions

No formal assessments of pharmacokinetic drug-drug interactions between TRISENOX and other drugs have been conducted. The methyltransferases responsible for metabolizing arsenic trioxide are not members of the cytochrome P450 family of isoenzymes (see PRECAUTIONS).


If symptoms suggestive of serious acute arsenic toxicity (e.g., convulsions, muscle weakness and confusion) appear, TRISENOX (arsenic trioxide) injection should be immediately discontinued and chelation therapy should be considered. A conventional protocol for acute arsenic intoxication includes dimercaprol administered at a dose of 3 mg/kg intramuscularly every 4 hours until immediate life-threatening toxicity has subsided. Thereafter, penicillamine at a dose of 250 mg orally, up to a maximum frequency of four times per day (≤ 1 g per day), may be given.


TRISENOX is contraindicated in patients who are hypersensitive to arsenic.


  1. Recommendations for the Safe Handling of Parenteral Antineoplastic Drugs. Publication NIH 83-2621. For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402.
  2. Council on Scientific Affairs. Guidelines for handling parenteral antineoplastics. JAMA. 1985;253:1590-1592.
  3. National Study Commission on Cytotoxic Exposure. Recommendations for handling cytotoxic agents. Available from Louis P. Jeffrey, ScD, Chairman, National Study Commission on Cytotoxic Exposure, Massachusetts College of Pharmacy and Allied Health Sciences, 179 Longwood Avenue, Boston, Massachusetts 02115.
  4. Clinical Oncological Society of Australia. Guidelines and recommendations for safe handling of antineoplastic agents. Med J Australia. 1983;1:426-428.
  5. Jones RB, et al. Safe handling of chemotherapeutic agents: a report from the Mount Sinai Medical Center. CA J Clin. 1983;33:258-263.
  6. American Society of Hospital Pharmacists Technical Assistance Bulletin on Handling Cytotoxic and Hazardous Drugs. Am J Hosp Pharm. 1990;47:1033-1049.
  7. Controlling Occupational Exposure to Hazardous Drugs (OSHA Work-Practice Guidelines). Am J Health-Syst Pharm. 1996;53:1669-1685.

Rx only

Manufactured for:

Cephalon, Inc.
Frazer, PA 19355

Revised November 2008

TRISENOX is a trademark of Cephalon, Inc., or its affiliates. 

U.S. Patent Nos. 6,723,351; 6,855,339; 6,861,076; 6,884,439
©2000-2008 Cephalon, Inc.,or its affiliates.  All rights reserved. 


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