Abbreviations Utilized in Pharmacology

Abbreviation: Latin Meaning: English Meaning:
R/ Recipe take
m. misce mix
a.c. anti cibum before meals
p.c. post cibum after meals
b.i.d. bis in diem twice a day
bis i. d. bis in diem twice a day
t.i.d. ter in diem three times a day
ter i. d. ter in diem three times a day
q.i.d. quarter in diem four times a day
q.d. quaque die every day
q.h. quaque hora every hour
qq. hor. quaque hora every hour
q.q.h. quaque quarta hora every four hours
h.s. hora somni at bedtime
hor.som. hora somni at bedtime
omn. hor. omni hora every hour
o.d. omni die every day
in d. in dies daily
de d. in d. de die in diem daily
quotid. quotidie daily
alt. dieb alternis diebus on alternate days
dieb. alt. diebus alternis on alternate days
m. et n. mane et nocte morning and night
noct. maneq. noct maneque night and morning
sig. signetur let it be labeled
S sine without
c, c cum with
stat. statim immeditately
grad. gradatim gradually
c. circa about, approximately
ca. circa about, approximately
d. da give, administer
sum. sume take
dil. dilue, dilutus dilute, diluted
solv. solve dissolve
n.b. nota bene mark well
p.r.n. pro re nata as occasion rises
q.s. quantum satis as much as suffices
q. suff. quantum sufficit as much as suffices
q.l. quantum libet as much as desired
q.p. quantumm placeat as much as you please
ut dict. ut dictum as directed
s.o.s. si opus sit if necessary
si op. sit si opus sit if necessary
dur. dolor. durante dolore while the pain lasts
tal. talis such
st. stet, stent let it stand, let them stand
cont. rem. continuantur remedia let the remedies be continued
p.p.a. phiala prius agitata shake the bottle first
ad libit. ad libitum at will
aq. aqua water
d. in p. aeq. dividiatur in partes aequales divide into equal parts