Poisoning Interventions

Miscellaneous Interventions


The one study reviewed here examines a change in the form of a drug (shape and character) and its effectiveness in reducing poisonings.

Review of other interventions:


Scherz, 1968

Study design and target population

Before and after design.

Children admitted to Madigan General Hospital for poisoning from ferrous sulfate, 1964 to 1968.


Replacement of drug from small tablet to large capsule.


Poisoning admissions.


No admissions for ferrous sulfate poisonings after change in drug form. Expected number from previous years is 20-25.

Study quality and conclusions

No controls used in study.

Effect of intervention may be confounded by other factors.

Summary of miscellaneous interventions

The study reviewed above showed that making pills unchewable and too large for small children to swallow possibly played a role in reducing poisonings from that drug. However, there were no control groups in the study, and the before and after design cannot adjust for secular trends in the data.

Recommendations on miscellaneous programs

At this time, no recommendation can be made on this intervention. In fact, making a pill that is too large for children to swallow may serve to increase the risk of choking on the pill (as will its unchewable nature).