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Pentetate zinc trisodium
  • Professionals
  • FDA PI

Pentetate zinc trisodium

Dosage form: injection, solution, concentrate
Drug class:Antidotes

Medically reviewed by Drugs.com. Last updated on Jan 1, 2021.

WARNING: ASTHMA EXACERBATION WITH NEBULIZATION and DEPLETION OF TRACE METALS DURING THERAPY
  • Nebulized Zn-DTPA may be associated with asthma exacerbation. (5.1)
  • Zn-DTPA is associated with depletion of trace metals. The risk for depletion increases when Zn-DTPA is administered over several months. Monitor serum zinc levels, serum creatinine, BUN, electrolytes, urinalysis and blood cell counts during Ca-DTPA or Zn-DTPA therapy. (2.4, 5.2)

Indications and Usage for Pentetate zinc trisodium

Zn-DTPA is indicated for treatment of individuals with known or suspected internal contamination with plutonium, americium, or curium to increase the rates of elimination.

Pentetate zinc trisodium Dosage and Administration

Dose

Administer Ca-DTPA as the initial dose during the first 24 hours after internal contamination. Ca-DTPA is more effective than Zn-DTPA during this time period (see Ca-DTPA labeling). If Ca-DTPA is not available, use Zn-DTPA as initial therapy. On the next day, if additional chelation therapy is indicated, begin daily treatment with Zn-DTPA. If Zn-DTPA is not available, chelation therapy may continue with Ca-DTPA and concomitant mineral supplements containing zinc should be given (see Ca-DTPA labeling).

Do not administer more than one dose per 24 hour period.

If Ca-DTPA is not available during the first 24 hours:

  • in adults and adolescents, administer intravenously a single 1.0 gram initial dose of Zn-DTPA.
  • in children less than 12 years of age, administer intravenously a single 14 mg/kg initial dose of Zn-DTPA, not to exceed 1.0 gram.

After the first 24 hours, continue chelatio...