Toxicology mnemonic

Features of organophosphate poisoning

The mnemonic

SLUDGE

What each word stands for

  • SSalivation
  • LLacrimation
  • UUrination
  • DDefaecation
  • GGastrointestinal cramps
  • EEmesis

Why it matters clinically

Recognises muscarinic excess so atropine can be started early.

Where it stops being reliable

Misses nicotinic effects such as fasciculations and weakness, and CNS features.

Teaching aid, still awaiting independent review. Confirm facts in a standard source.

More mnemonics

Common questions

What is the Toxicology mnemonic?

SLUDGE. It helps you recall: Features of organophosphate poisoning.

What does "S" stand for?

Salivation

What does "L" stand for?

Lacrimation

What does "U" stand for?

Urination

What are all the parts of the SLUDGE mnemonic?

S: Salivation; L: Lacrimation; U: Urination; D: Defaecation; G: Gastrointestinal cramps; E: Emesis.

Which topic does this mnemonic belong to?

It belongs to Toxicology in Forensic Medicine.

Where does this mnemonic stop being reliable?

Misses nicotinic effects such as fasciculations and weakness, and CNS features.

How is this useful clinically?

Recognises muscarinic excess so atropine can be started early.

How do I make this mnemonic stick?

Say it aloud, write it from memory tomorrow, then again in a week. Then test yourself on a Forensic Medicine question about Toxicology.

Is this a standard mnemonic?

It is a teaching aid written or adapted by our team. Some resemble ones students share informally. Check any fact that matters in a standard source.