Which brand was recalled in 1982 after cyanide-laced capsules caused the Chicago Tylenol murders?

The 1982 Chicago Tylenol murders involved Extra-Strength Tylenol capsules that had been poisoned with cyanide.

Seven people died after taking capsules that had been removed from store shelves, contaminated, and returned. The tampering occurred in the Chicago area, and investigators never identified the perpetrator.

Johnson & Johnson and its subsidiary McNeil Consumer Products responded with a nationwide recall of Tylenol products. The crisis helped establish tamper-evident packaging, including sealed boxes, foil, and plastic bands, as a standard for over-the-counter medicines.

The incident is often confused with a manufacturing contamination event. It was deliberate product tampering after distribution, rather than a defect affecting every Tylenol capsule.