Unit of measure
MCG medical abbreviation
MCG means "microgram".
Each meaning matched at least two public references (3 in all for MCG), checked October 23, 2026. The table lists them.
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What MCG means
| Meaning | Latin origin | Where used | Checked against |
|---|---|---|---|
| microgram | None | Prescriptions, Charting |
Also written: mcg.
Example
Sample label text: "mcg per tablet."
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 MCG mean in medical terms?
MCG means "microgram".
Where is MCG used?
MCG shows up in prescriptions and charting. Its category here is unit of measure.
Is MCG on the Joint Commission Do Not Use list?
No. MCG is not on the Joint Commission Do Not Use list or the ISMP error-prone list as checked on October 23, 2026.