Prescriptions are written using a mixture of abbreviations, Latin words and English. This can be confusing. Here’s a simple guide to understanding the jargon.
Abbreviation: |
Short for the Latin words: |
In English this means: |
ac |
ante cibos |
before meals |
bd |
bis in die sumendum |
twice daily |
caps |
capsulae |
capsules |
m |
mane |
morning |
n |
nocte |
evening |
mg |
milligrammum |
milligram |
ml |
millilitra |
millilitre |
nocte |
nocte |
at bedtime |
pc |
post cibos |
after meals |
prn |
pro re nata |
as required |
qds |
quater in die sumendum |
four times daily |
stat |
statim |
at once |
tds |
ter in die sumendum |
three times daily |