Chlorophenoxy herbicide

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Chemical structure of 2,4-D, the prototypical chlorophenoxy herbicide 2-(2,4-dichlorophenoxy)acetic acid 200.svg
Chemical structure of 2,4-D, the prototypical chlorophenoxy herbicide

Chlorophenoxy herbicides are a subclass of phenoxy herbicides which includes: MCPA, 2,4-D, 2,4,5-T and mecoprop. [1] Large amounts have been produced since the 1950s for agriculture. [2] Acute toxic effects after oral consumption are varied and may include: vomiting, abdominal pain, diarrhoea, gastrointestinal haemorrhage acutely followed by coma, hypertonia, hyperreflexia, ataxia, nystagmus, miosis, hallucinations and convulsions. [3] Treatment with urinary alkalinization may be helpful but evidence to support this practice is limited. [1] [3]

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References

  1. 1 2 Roberts DM, Buckley NA (2007). "Urinary alkalinisation for acute chlorophenoxy herbicide poisoning". Cochrane Database Syst Rev (1): CD005488. doi:10.1002/14651858.CD005488.pub2. PMID   17253558.
  2. "Occupational Exposures to Chlorophenoxy Herbicides (IARC Summary & Evaluation, Volume 41, 1986)".
  3. 1 2 Bradberry SM, Proudfoot AT, Vale JA (2004). "Poisoning due to chlorophenoxy herbicides". Toxicol Rev. 23 (2): 65–73. doi:10.2165/00139709-200423020-00001. PMID   15578861.