Page 15 - A Guide to Dosage Form 1

a.j. Ante jentaculum Before breakfast
a.m Ante meridiem Before noon
n. Nocte At night
Inter noct. Inter noctem During the night
o.n Omni nocte Every night
h.d Hora decubitus At bedtime
h.s Hora somni At bedtime
n. et m. / n.m Nocte et mane Night and morning
m.seq Mane sequenti The following morning

‘HOUR’ TIME
Abbreviations Term or phrase Meaning
o.h / qq.h Omni hora / quaque horq Every hour
o.q.h / qq.q.h Omni quarta hora / quaque Every four hours
quarta hora
Sing.hor Singulis horis Every hour
Sec.hor Secundis horis Every two hours
Alt.hor / a.h. Alternis horis Every two hours
Tert.hor Tertiis horis Every three hours
Quart.hor Quartis horis Every four hours
Sext.hor Sextis horis Every six hours

CORRELATED TIME
Abbreviations Term or phrase Meaning
a.c Ante cibos / ante cibum Before meal
p.c Post cibos / post cibum After meal
i.c Inter cibos / inter cibum Between meal

OTHERS
Abbreviations Term or phrase Meaning
Dol. urg Dolore urgente When the pain is severe
Freq. Frequenter Frequently
Lente Lente Slowly
m.d More dicto / modo dicto As directed
Ut. dict. Ut dictum As directed
p.r.n Pro re nata Occasionally, if needed
Si dol. urg Si dolor urgeat If the pain is severe
s.o.s Si opus sit When required
Stat. Statim Immediately, at once
Stat. eff. Statu effervescentiæ Whilst effervesing
Suff. Sufficiens sufficient
Tuss. urg Tussi urgente When the cough is
troublesome