Health and MedicineDrugs and Medicines |
What is the meaning of the abbreviations often used by a doctor when writing a prescription? |
Latin Phrase | Shortened Form | Meaning |
quaque hora | qh | every hour |
quaque die | qd | every day |
bis in die | bid | twice a day |
ter in die | tid | three times a day |
quarter in die | qid | four times a day |
pro re nata | prn | as needed |
ante cibum | a.c. | before meals |
post cibum | p.c. | after meals |
per os | p.o. | by mouth |
nihil per os | n.p.o. | nothing by mouth |
signetur | sig | let it be labeled |
statim | stat | immediately |
ad libitum | ad lib | at pleasure |
hora somni | h.s. | at bedtime |
cum | c | with |
sine | s | without |
guttae | gtt | drops |
semis | ss | a half |
et | et | and |