ABBREVATIONS &
SYMBOLS
,ABBREVATIONS USED
REGARDING TIME OF
ADMIISTRATION
, ABBREVIATION DERIVATION MEANING
a.c Ante cibum Before meals
p.c Post cibum After meals
a.m Ante meridian Before noon
p.m Post meridian After noon
Alt. die Altenis diebns Alternate days
o.m Omne mane Every morning
o.d omneindie Daily (once a day)
o.n Omne nocte Every night
h.s Hora somni At bed time
PRN/ p.r.n Pro re nata When required
s.o.s Si opus sit If there is needed
b.i.d Bis in die Twice a day
t.i.d Ter in die Three times a day
q.i.d Quarter in die Four times a day
Stat statim immediately
rep repetatur repeat
h. hora hour
qq. quaque Every, per
SYMBOLS
,ABBREVATIONS USED
REGARDING TIME OF
ADMIISTRATION
, ABBREVIATION DERIVATION MEANING
a.c Ante cibum Before meals
p.c Post cibum After meals
a.m Ante meridian Before noon
p.m Post meridian After noon
Alt. die Altenis diebns Alternate days
o.m Omne mane Every morning
o.d omneindie Daily (once a day)
o.n Omne nocte Every night
h.s Hora somni At bed time
PRN/ p.r.n Pro re nata When required
s.o.s Si opus sit If there is needed
b.i.d Bis in die Twice a day
t.i.d Ter in die Three times a day
q.i.d Quarter in die Four times a day
Stat statim immediately
rep repetatur repeat
h. hora hour
qq. quaque Every, per
