aq - aqueous
amp - ampoule
b.d. / bid - twice daily
cap - capsule
disp - dispersible (tablets)
g - gram
hrly - hourly
inj - injection
kg - kilogram
IM - intramuscular
IV - intravenous
L - liter
mcg - microgram
mEq - milliequivalent
mg - milligram
mL - milliliter
mth / mthly - monthly
neb - nebulizer
nocte - at night
OD - orally disintegrating
o.d. - once daily
PO, O - oral administration
PR - per rectum
PRN - as required
Q4h - every 4 hours
Q8h - Every 8 hours
q.d.s. - four times a day
SC - subcutaneous
SL - sublingual
sol. - soluble
stat. - immediately
supp - suppository
susp - suspension
syr - syrup
t.d.s. - three times a day
tabs - tablets
wk / wkly - week / weekly
yr / yrly - year / yearly