The PRN reason for the medication should display on the eMAR. This will allow nurses to easily find a medication to give for the condition being treated. For instance, there may be several medications prescribed for different pain levels. This would help the nurse find the medication for the moderate pain the patient is currently reporting.
For most medications that are PRN, we have went in on the comment lines and added PRN reasons. For example, Zofran items in the comments say "PRN for N/V" the same for pain meds with the addition of pain scale to match mild, moderate, severe.
You can't see the PRN reason at all on the pharmacy/system menu side either.