a.c.
before meals (ante cibum)
p.c.
after meals (post cibum)
q.d.
every day
b.i.d.
two times a day
t.i.d.
three times a day
q.i.d.
four times a day
q.o.d.
every other day
q.h.
every hour
min.
minute
a.m.
Morning (ante-meridian)
p.m.
Afternoon/evening (post-meridian)
h.s.
Bedtime (hour of sleep)
n.o.c.
Night (nocturnal)
Stat.
Immediately or at once
p.r.n.
As necessary
D/C
Discontinue or stop
c
with
s
without
q
every