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Pentetate Calcium Trisodium
  • Professionals
  • FDA PI

Pentetate Calcium 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 Ca-DTPA may be associated with asthma exacerbation. (5.1)
  • Ca-DTPA is associated with depletion of trace metals such as zinc. The magnitude of depletion increases with split daily dosing, with increasing dose and with increased treatment duration. Only a single dose of Ca-DTPA is recommended. Use Zn-DTPA if additional chelation therapy is indicated. 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 Calcium Trisodium

Ca-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 Calcium 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. If Ca-DTPA is not available, use Zn-DTPA as the initial therapy. On the next day, if additional chelation therapy is indicated, begin daily treatment with Zn-DTPA (see Zn-DTPA labeling). If Zn-DTPA is not available, chelation therapy may continue with Ca-DTPA; concomitant mineral supplements containing zinc should be given. [See Warnings and Precautions (5.2)]

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

Adults and Adolescents

A single 1.0 gram initial dose of ...