Pharmacy
HCTZ medical abbreviation
HCTZ means "hydrochlorothiazide".
On the ISMP List of Error-Prone Abbreviations. ISMP suggests: Write the full drug name.
Each meaning matched at least two public references (4 in all for HCTZ), checked October 23, 2026. The table lists them.
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What HCTZ means
| Meaning | Latin origin | Where used | Checked against |
|---|---|---|---|
| hydrochlorothiazide | None | Prescriptions, Pharmacy |
Example
Training example of an error-prone entry: "HCTZ" on an order.
A made-up line that shows the abbreviation in place. It is not about any patient and is not an instruction.
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Questions
What does HCTZ mean in medical terms?
HCTZ means "hydrochlorothiazide".
Where is HCTZ used?
HCTZ shows up in prescriptions and pharmacy. Its category here is pharmacy.
Is HCTZ on the Joint Commission Do Not Use list?
No, but ISMP lists HCTZ as an error-prone abbreviation. ISMP's suggested practice: Write the full drug name.