Lead poisoning medical therapy

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Aksiniya Stevasarova, M.D.

Overview

The mainstay of treatment for lead poisoning is chelation therapy.

Although the most important part of treating lead poisoning is decreasing exposure to lead, pharmacologic medical therapy with chelating agents to decrease the existing BLL (blood lead levels) include:

• DMSA / Succimer
• Ethylenediaminetetraacetic acid (EDTA)
• British anti-Lewisite (BAL)/ Dimercaprol

Medical Therapy

Additionally, a comparative study of chelating agents showed that vitamin C (ascorbic acid), along with DMSA, CDTA and DMPS increased survival in an animal model of lead intoxication, while EDTA, N-acetyl-L-cysteine (NAC) and various other agents did not. High serum levels of vitamin C have been associated with a decreased prevalence of elevated blood lead levels and intervention with supplemental vitamin C was shown to markedly decrease lead levels in smokers (mean: 81 %). Authors hypothesize, however, that this effect might be due to an inhibition of lead absorption.

Disease Name

• 1 Stage 1 - Name of stage
  • 1.1 Specific Organ system involved 1
    • 1.1.1 Adult
      • Preferred regimen (1): drug name 100 mg PO q12h for 10-21 days (Contraindications/specific instructions)
      • Preferred regimen (2): drug name 500 mg PO q8h for 14-21 days
      • Preferred regimen (3): drug name 500 mg q12h for 14-21 days
      • Alternative regimen (1): drug name 500 mg PO q6h for 7–10 days
      • Alternative regimen (2): drug name 500 mg PO q12h for 14–21 days
      • Alternative regimen (3): drug name 500 mg PO q6h for 14–21 days
    • 1.1.2 Pediatric
      • 1.1.2.1 (Specific population e.g. children < 8 years of age)
        • Preferred regimen (1): drug name 50 mg/kg PO per day q8h (maximum, 500 mg per dose)
        • Preferred regimen (2): drug name 30 mg/kg PO per day in 2 divided doses (maximum, 500 mg per dose)
        • Alternative regimen (1): drug name10 mg/kg PO q6h (maximum, 500 mg per day)
        • Alternative regimen (2): drug name 7.5 mg/kg PO q12h (maximum, 500 mg per dose)
        • Alternative regimen (3): drug name 12.5 mg/kg PO q6h (maximum, 500 mg per dose)
      • 1.1.2.2 (Specific population e.g. 'children < 8 years of age')
        • Preferred regimen (1): drug name 4 mg/kg/day PO q12h（maximum, 100 mg per dose）
        • Alternative regimen (1): drug name 10 mg/kg PO q6h (maximum, 500 mg per day)
        • Alternative regimen (2): drug name 7.5 mg/kg PO q12h (maximum, 500 mg per dose)
        • Alternative regimen (3): drug name 12.5 mg/kg PO q6h (maximum, 500 mg per dose)
  • 1.2 Specific Organ system involved 2
    • 1.2.1 Adult
      • Preferred regimen (1): drug name 500 mg PO q8h
    • 1.2.2 Pediatric
      • Preferred regimen (1): drug name 50 mg/kg/day PO q8h (maximum, 500 mg per dose)

• 2 Stage 2 - Name of stage
  • 2.1 Specific Organ system involved 1

    Note (1):

    Note (2):

    Note (3):

    • 2.1.1 Adult
      • Parenteral regimen
        • Preferred regimen (1): drug name 2 g IV q24h for 14 (14–21) days
        • Alternative regimen (1): drug name 2 g IV q8h for 14 (14–21) days
        • Alternative regimen (2): drug name 18–24 MU/day IV q4h for 14 (14–21) days
      • Oral regimen
        • Preferred regimen (1): drug name 500 mg PO q8h for 14 (14–21) days
        • Preferred regimen (2): drug name 100 mg PO q12h for 14 (14–21) days
        • Preferred regimen (3): drug name 500 mg PO q12h for 14 (14–21) days
        • Alternative regimen (1): drug name 500 mg PO q6h for 7–10 days
        • Alternative regimen (2): drug name 500 mg PO q12h for 14–21 days
        • Alternative regimen (3):drug name 500 mg PO q6h for 14–21 days
    • 2.1.2 Pediatric
      • Parenteral regimen
        • Preferred regimen (1): drug name 50–75 mg/kg IV q24h for 14 (14–21) days (maximum, 2 g)
        • Alternative regimen (1): drug name 150–200 mg/kg/day IV q6–8h for 14 (14–21) days (maximum, 6 g per day)
        • Alternative regimen (2):  drug name 200,000–400,000 U/kg/day IV q4h for 14 (14–21) days (maximum, 18–24 million U per day) '(Contraindications/specific instructions)'
      • Oral regimen
        • Preferred regimen (1): drug name 50 mg/kg/day PO q8h for 14 (14–21) days (maximum, 500 mg per dose)
        • Preferred regimen (2): drug name (for children aged ≥ 8 years) 4 mg/kg/day PO q12h for 14 (14–21) days (maximum, 100 mg per dose)
        • Preferred regimen (3): drug name 30 mg/kg/day PO q12h for 14 (14–21) days (maximum, 500 mg per dose)
        • Alternative regimen (1): drug name 10 mg/kg PO q6h 7–10 days (maximum, 500 mg per day)
        • Alternative regimen (2): drug name 7.5 mg/kg PO q12h for 14–21 days (maximum, 500 mg per dose)
        • Alternative regimen (3): drug name 12.5 mg/kg PO q6h for 14–21 days (maximum,500 mg per dose)
  • 2.2 'Other Organ system involved 2'

    Note (1):

    Note (2):

    Note (3):

    • 2.2.1 Adult
      • Parenteral regimen
        • Preferred regimen (1): drug name 2 g IV q24h for 14 (14–21) days
        • Alternative regimen (1): drug name 2 g IV q8h for 14 (14–21) days
        • Alternative regimen (2): drug name 18–24 MU/day IV q4h for 14 (14–21) days
      • Oral regimen
        • Preferred regimen (1): drug name 500 mg PO q8h for 14 (14–21) days
        • Preferred regimen (2): drug name 100 mg PO q12h for 14 (14–21) days
        • Preferred regimen (3): drug name 500 mg PO q12h for 14 (14–21) days
        • Alternative regimen (1): drug name 500 mg PO q6h for 7–10 days
        • Alternative regimen (2): drug name 500 mg PO q12h for 14–21 days
        • Alternative regimen (3):drug name 500 mg PO q6h for 14–21 days
    • 2.2.2 Pediatric
      • Parenteral regimen
        • Preferred regimen (1): drug name 50–75 mg/kg IV q24h for 14 (14–21) days (maximum, 2 g)
        • Alternative regimen (1): drug name 150–200 mg/kg/day IV q6–8h for 14 (14–21) days (maximum, 6 g per day)
        • Alternative regimen (2):  drug name 200,000–400,000 U/kg/day IV q4h for 14 (14–21) days (maximum, 18–24 million U per day)
      • Oral regimen
        • Preferred regimen (1): drug name 50 mg/kg/day PO q8h for 14 (14–21) days (maximum, 500 mg per dose)
        • Preferred regimen (2): drug name 4 mg/kg/day PO q12h for 14 (14–21) days (maximum, 100 mg per dose)
        • Preferred regimen (3): drug name 30 mg/kg/day PO q12h for 14 (14–21) days (maximum, 500 mg per dose)
        • Alternative regimen (1): drug name 10 mg/kg PO q6h 7–10 days (maximum, 500 mg per day)
        • Alternative regimen (2): drug name 7.5 mg/kg PO q12h for 14–21 days (maximum, 500 mg per dose)
        • Alternative regimen (3): drug name 12.5 mg/kg PO q6h for 14–21 days (maximum,500 mg per dose)