What is tall-man lettering used for in medication safety?

• A. Using mixed-case letters to highlight differences in LASA drug names
• B. Using all caps
• C. Using bold for all drug names
• D. Using italics for generic names only

Answer: (A)

Tall-man lettering is a safety tactic that highlights differences between look-alike drug names by using mixed case. By capitalizing the letters that differ between two similar names, it makes the contrasting parts stand out at a glance, helping pharmacists and other clinicians quickly distinguish one product from another during prescribing, dispensing, and labeling. This reduces the chance of selecting the wrong drug when names are easily confused.

For example, showing prednisone as predniSONE and prednisolone as predniSOLONE draws attention to the differing portion of the names, making it easier to tell them apart in busy workflows. This approach is not about making all letters uppercase, nor about bold or italic styling applied uniformly; it’s about selectively emphasizing the specific letters that differentiate similar drug names.