q.i.d.
four times a day
q.o.d.
Every other day
q.s.
Sufficient quantity
q.s. ad
A sufficient quantity to make
r or R
rectal
s
without
s.o.s
If there is a need
sat.
saturated
Sig.
Write on label
SL
sublingually; under the tongue
Sol
solution
Ss or ss
one half
stat
immediately
subq.
subcutaneous
supp.
suppository
susp
suspension
syr.
syrup
t.i.d
three times a day
t.i.w.
three times a week
top.
topical