o.d.
Once daily
What o.d. stands for
o.d. is a medical abbreviation for once daily. TermDecode files it under frequency abbreviations.
Risk
ISMP lists o.d./OD as error-prone when intended as once daily: it may be mistaken as right eye, leading to oral liquid medications administered in the eye.
Safer Alternative
Write "daily"
Seen in context
o.d. misread as OD (right eye)
Sources
The risk description and safer alternative above are reproduced from these published lists.
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