What Does QD Mean?

CUE-dee
IPA: /ˌkjuːˈdiː/
CUE dee
QD is pronounced CUE-dee

What does QD stand for?

QD stands for 'quaque die,' Latin for 'every day' or 'once daily.

How do you pronounce QD?

QD is pronounced "CUE-dee". Syllables: cue - dee.

When is QD used in medicine?

Once-daily dosing for statins, many antihypertensives, thyroid medications, and vitamins.

Word Parts & Etymology

Latinquaque dieevery day / once daily

Common Misconceptions

Easily confused with QID (four times daily) — a potentially dangerous mix-up. The Joint Commission flags QD as a 'do not use' abbreviation for this reason.

Clinical Context

Once-daily dosing for statins, many antihypertensives, thyroid medications, and vitamins.

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