That was one incident that impacted just about every single item you find in the supermarket or drug store.
Before that, nobody bothered with inner peel-away caps. Now everything has it. Ketchup has it.
It's kind of mind boggling to me that it took until 1982 for that change to be made. It also makes me wonder how many more poisonings might have slipped under the radar for the same reason...
1. https://en.m.wikipedia.org/wiki/Chicago_Tylenol_murders