Tall man lettering is used in pharmacy to prevent confusion between which of the following?

• A. Similar drug names
• B. Dose amounts
• C. Expiration dates
• D. Manufacturer IDs

Answer: (A)

Tall Man lettering is a safety technique that highlights differences within drug names that look or sound alike. By capitalizing the differing parts of similar names, it helps pharmacists and other healthcare staff quickly distinguish one drug from another, reducing the risk of selecting the wrong medication during prescribing, dispensing, or labeling.

This approach targets look-alike drug names specifically, not dose amounts, expiration dates, or manufacturing identifiers, which are separate pieces of information. ISMP and pharmacy practice guidelines promote this visual cue as a way to prevent errors that arise from name confusion.