Medword Resources:
Directions & Dosages Abbreviations |
Directions & Dosages Abbreviations
Drug Directions & Dosages Abbreviations
Abbreviation | Derivation | Meaning |
aa | ana | of each |
ad | ad | up to |
ad lib | ad libitum | as much as desired |
b | bis | twice |
C | | centigrade |
c | cum | with |
cc | | cubic centimeter |
caps | capsula | capsule |
Gm | gram | gram, grams |
gr | granum,grana | grain, grains |
gtt | gutta | drop, drops |
(h) | hypodermic | under the skin |
IM | | intramuscular |
IV | | intravenous |
kg | kilogram | thousand grams |
l | liter | liter |
LB., lb | libra | pound |
ml | milliliter | thousandth of a liter |
ocul | oculus | the eye |
o.d. | oculo dextro | in right eye |
o.s. | oculo sinistro | in left eye |
o.u. | oculus uterque | in each eye |
p.o. | per os | by mouth |
q.s. | quantum sufficit | a sufficient quantity |
R | recipe | take |
s | sine | without |
s.c., sub cut | sub cutem | subcutaneous |
sig | signa | label, let it be labeled |
s.o.s. | si opus sit | if necessary |
ss | semis | one-half |
tab | | tablet |
tsp | teaspoon | teaspoonful |
tbsp | tablespoon | tablespoonful |