Sig code: dosage form
MDI medical abbreviation
MDI means "metered dose inhaler".
Each meaning matched at least two public references (3 in all for MDI), checked October 23, 2026. The table lists them.
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What MDI means
| Meaning | Latin origin | Where used | Checked against |
|---|---|---|---|
| metered dose inhaler | None | Prescriptions, Medication labels |
Example
Sample label text: "MDI with spacer."
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 MDI mean in medical terms?
MDI means "metered dose inhaler".
Where is MDI used?
MDI shows up in prescriptions and medication labels. Its category here is sig code: dosage form.
Is MDI on the Joint Commission Do Not Use list?
No. MDI is not on the Joint Commission Do Not Use list or the ISMP error-prone list as checked on October 23, 2026.