Sig code: timing
AM medical abbreviation
AM means "morning", from the Latin "ante meridiem".
Each meaning matched at least two public references (2 in all for AM), checked October 23, 2026. The table lists them.
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What AM means
| Meaning | Latin origin | Where used | Checked against |
|---|---|---|---|
| morning | ante meridiem | Prescriptions, Medication labels |
Also written: a.m.
Example
Sample label text: "take in the AM."
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 AM mean in medical terms?
AM means "morning", from the Latin "ante meridiem".
What does AM stand for in Latin?
AM comes from "ante meridiem", meaning "morning".
Where is AM used?
AM shows up in prescriptions and medication labels. Its category here is sig code: timing.
Is AM on the Joint Commission Do Not Use list?
No. AM is not on the Joint Commission Do Not Use list or the ISMP error-prone list as checked on October 23, 2026.