Sig code: timing
PM medical abbreviation
PM means "evening", from the Latin "post meridiem".
Each meaning matched at least two public references (3 in all for PM), checked October 23, 2026. The table lists them.
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What PM means
| Meaning | Latin origin | Where used | Checked against |
|---|---|---|---|
| evening | post meridiem | Prescriptions, Medication labels |
Also written: p.m.
Example
Sample label text: "take in the PM."
A made-up line that shows the abbreviation in place. It is not about any patient and is not an instruction.
Related abbreviations
Elsewhere on Rivvi
Questions
What does PM mean in medical terms?
PM means "evening", from the Latin "post meridiem".
What does PM stand for in Latin?
PM comes from "post meridiem", meaning "evening".
Where is PM used?
PM shows up in prescriptions and medication labels. Its category here is sig code: timing.
Is PM on the Joint Commission Do Not Use list?
No. PM is not on the Joint Commission Do Not Use list or the ISMP error-prone list as checked on October 23, 2026.