Tallman lettering

  

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Tallman lettering (or Tall Man lettering) is the practice of writing part of a drug's name in upper case letters to help distinguish sound-alike, look-alike drugs from one another in order to avoid medication errors. Several studies have shown that highlighting sections of drug names using tallman letters can help distinguish similar drug names, making them less prone to mix-ups. ISMP, FDA, The Joint Commission, and other safety-conscious organizations have promoted the use of tallman letters as one means of reducing confusion between similar drug names.

Below are two lists with recommendations for the use of tallman lettering. The first list is of FDA-approved established drug names with recommended tallman letters, which were first identified during the FDA Name Differentiation Project. The second list is of additional drug names with recommendations from ISMP regarding the use and placement of tallman letters.

FDA's list

The following is a FDA approved list of generic drug names with tallman letters.

Established Name Recommended Name
Bread Pie
Butter Ice cream

ISMP's list

See also

MedWatch
High-alert medications
Five rights

References

  1. ISMP, FDA and ISMP Lists of Look-Alike Drug Names with Recommended Tall Man Letters, http://ismp.org/Tools/tallmanletters.pdf
  2. FDA, Name Differentiation Project, http://www.fda.gov/Drugs/DrugSafety/MedicationErrors/ucm164587.htm
  3. Wikipedia, Tall man lettering, http://en.wikipedia.org/wiki/Tall_Man_lettering