Which visual design element was specifically introduced to pharmaceutical packaging in the 1970s to drastically reduce medication errors in hospital settings?

Visual storytelling plays a crucial role in the medical and pharmaceutical industry. From hospital signage to medication packaging, visual elements communicate trust, efficacy, and safety. Effective healthcare visual storytelling can improve patient understanding, ensure medication adherence, and even reduce medical errors. How well do you know the strategic visual elements used in pharmaceutical product design?

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Tall Man lettering (mixed case with emphasized capitals) to distinguish similar drug names
Color-coded warning labels for high-alert medications
Machine-readable barcodes for inventory and administration tracking
Pictograms showing dosage timing and administration routes