Well the reason you have not understood what the abbreviations on your prescription given to you from your doctor is that you have not studied Latin. Yes, that is the reason! They are all Latin abbreviations. If your prescription read something like "T. 2 cap q.i.d. p.c." it would mean take "take 2 capsules four times a day after meal"
Here are some of the most common abbreviations and their meanings to help you read your Rx i.e. prescription.
The frequency of taking your drugs each day:
b.i.d --. twice a day
t.i.d. -- three times a day
q.i.d.-- four times a day
q.h. -- Every hour
q.d. -- Every day
h.s. -- at bedtime
q.o.d. -- every other day
p.r.n. -- as required
ut. dict. -- use as directed
The dosage amount to take:
U -- unit
u -- unit
cc -- cubic centimeter
How or where to place or take the prescription:
p.o. by mouth
a.s. left ear
a.u. each ear
a.d. right ear
o.l. left eye
o.s. left eye
o.d. right eye
o.u. each eye
In regard to food:
c with
s without
a.c. before meals
p.c. after meals
Unless you’re a Latin scholar some of these abbreviations can be confusing. Your best bet if in doubt is to check with your physician when the prescription is written, or with the pharmacist when the prescription is filled to make sure you comprehend the correct procedures for your medication.