Related Experiment Video
Updated: Mar 30, 2026

Color Spot Test As a Presumptive Tool for the Rapid Detection of Synthetic Cathinones
Published on: February 5, 2018
High-visibility warning labels on paracetamol-containing products do not prevent supratherapeutic ingestion in a
Joe-Anthony Rotella1,2, Anselm Wong1,2, Jocelyn Howell1
1a Emergency Department , Austin Health , Heidelberg , Victoria , Australia .
Context:
In Australia, legislation requires medication containing paracetamol display warning of co-administration with other paracetamol products, and safe maximum daily dosing (4 g). Labelling style, size and visibility differ, potentially leading possible supratherapeutic misadventure.
Objective:
We studied the likelihood of participants exceeding the recommended dose of paracetamol using products with standard packaging versus products labelled with one of two additional warning labels.
Methods:
This was a pilot prospective, observational study, conducted from May 2013 to July 2014. Participants undertook a structured interview to create a simulated 24-h scenario in which they chose from a range of labelled lone paracetamol- and compound paracetamol-containing medications to treat dental pain on six occasions. Participants were randomized to choose from one of three groups of analgesic medications with different package labelling: (1) standard packaging alone, (2) standard packaging + a pre-existing warning label and (3) standard packaging + large customized warning label. The primary outcome was to determine if participants would administer >4 g in 24 h, exceeding the recommended daily dose.
Results:
One hundred eighteen surveys were completed (response rate 100%, 56% females). Forty-one (35% of total) participants took >4 g within the 24-h scenario period. About 24% (10/42) of the standard packaging group, 37% (13/35) of the standard packaging + pre-existing warning label group and 48% (19/40) of the SP + large customized warning label group ingested >4 g of paracetamol. There were no significant differences between the three groups (p > 0.05).
Conclusion:
In this small, simulated dental pain scenario, use of customized warning labels did not reduce the likelihood of supratherapeutic misadventure.
Related Concept Videos
Pharmaceutical Poisoning: Potential Scenarios
Prevention of Further Absorption of Poison
Pharmaceutical Poisoning: Treatment Strategies
Pharmacovigilance
This process, termed pharmacovigilance, aims to detect, evaluate, and minimize harmful effects related to medication use. The data collection for pharmacovigilance depends on spontaneous reporting systems, where healthcare professionals or patients voluntarily report suspected ADRs.
In some cases, there...
Anticholinesterase Agents: Poisoning and Treatment
Irreversible agents form a strong bond with the cholinesterase enzyme, making it inactive. The breakdown of the phosphorylated enzyme is...
Drug Regulation

