Everyone’s dealt with them–those annoying little caps that you have to press down and twist in order to open medicine bottles. It’s commonly believed that these caps are one of the best medical packaging techniques to keep children out of dangerous medicines, but a recent study casts doubt on the efficacy of these bottle packaging designs.
Published in the Journal of Pediatrics, the study found that the majority of preschoolers could open uncapped or partially closed child-resistant bottle packaging designs, therefore giving them the opportunity to ingest potentially harmful medicines. On the flip side, the study also seemed to imply that when completely capped, the child-resistant bottle packaging designs work perfectly.
The study also found bottles with flow restriction devices,