Doctors are notorious for having particularly bad handwriting, but even when you figure out what's been written down, you still don't know what it means.
The reason for this is that certain sections of your prescription are written in Latin, or at least in abbreviations of the Latin language.
Latin abbreviations are used to indicate the directions of how to take your medicine, and it's used as a type of shorthand between doctors and pharmacists.
So don't feel stupid if you don't understand your script, because unless you have a medical background, prescription abbreviations will be almost impossible to decipher.
But if you learn to understand the medical shorthand you can read your own script, which will help you ask the right questions, and ensure that you are getting the right medication and directions of use from your pharmacist.
Here are some tips to help you see how this works:
Rx: I tab po qid pc & hs
Translates into:
Take one tablet by mouth (po) four times a day (qid), after meals (pc) and at bedtime (hs). The "Rx" in front stands for "recipe" in Latin.
Here is a rundown of commonly used abbreviations.
Abbreviation | Latin Translation | What It Means |
a.c. | ante cibum | before meals |
b.i.d. | bis in die | twice a day |
c | cum | with |
cap | capsula | capsule |
d | dies | day |
daw | dispense as written (no substituting generic or brand name drugs) | |
gtt | gutta | drop |
h.s. | hora somni | bedtime |
I.M. | into the muscle | |
I.V. | into the vein | |
mg | milligram | |
ml | millilitre | |
nocte | at night | |
O.D. | oculo dextro | right eye |
O.S. | oculo sinistro | left eye |
O.U. | oculo utro | in each eye |
p.c. | post cibum | after meals |
p.o. | per os | by mouth |
p.r.n. | pro re nata | as needed |
pil | pilula | pill |
qh | quaque hora | every hour |
q 3 h | quaque 3 hora | every 3 hours |
qAM | every morning | |
qd | quaque die | daily |
q.i.d. | quater in die | four times a day |
q.o.d | every other day | |
s | sine | without |
s.l. | under the tongue | |
tab | tabella | tablet |
t.i.d. | ter in die | three times a day |
tsp | teaspoon | |
tbsp | tablespoon | |
ut dict | as directed by doctor |
More about the prescription
Your prescription is usually written on a pre-printed pad with your doctor's name, address, and phone number. And in the blank space he fills in the script, which should include the following:
- Name of the medicine
- Medicine dosage
- How often to take the medicine – times per day
- When to take the medicine – with or after meals
- How to take the medicine – orally, externally
Your doctor will also indicate exactly the quantity of medicine the pharmacist should give you and the number of times that your prescription can be refilled.
For schedule 2 medication and up, you will have give your full name and address to the pharmacist.
Okay, so now that you speak doctor, let's put this new-found knowledge to the test:
Your diagnosis is high cholesterol and your script says the following:
Zocor 10 mg.
Rx: i po qhs
Dispense #90
Refill 0 times
This is what it means:
Zocor 10 mg - This is the name of the medication and the dose.
Rx: i po qhs - Your instructions are to take 1 pill, by mouth, at bedtime.
Dispense #90 -You will be given 90 pills, enough for about 3 months.
Refill 0 times -Your doctor has indicated no refills, most likely because she would like to check your blood cholesterol and then decide if you need more medication, or a different dose.
Try again?
Your diagnosis is diabetes and your script says:
Glucophage 500 mg.
Rx: i po bid pc
Dispense #90
Refill 3 times
Here's what it says:
Glucophage 500 mg. - This is the name of the medication and the dose.
Rx: i po bid pc - Your instructions are to take 1 pill, by mouth, twice each day, after meals - this means that you should take this medication right after breakfast and right after dinner.
Dispense #90 -You will be given 90 pills, enough for about 3 months.
Refill 3 times -Your doctor has indicated 3 refills, enough medication for one year. This may mean that your diabetes is "stable" and well controlled on this medication.
Prescription Abbreviations: use slowly in decline
While Latin terms are still commonly seen on prescriptions, some doctors are gradually retiring use of these old terms and better clarifying their drug orders in plain language.
Since improved readability helps prevent medication mix-ups, it has been recommended that prescribers write out instructions rather than use more ambiguous abbreviations. (For example, write "daily" rather than "qd," the abbreviated Latin term for "every day," which could be misinterpreted as "qid," meaning "4 times a day," or "od," meaning "right eye.")
If you are uncertain about a prescription, don't hesitate to ask you doctor or pharmacist for help. – (Wilma Stassen/Health24, December 2010)
Reviewed by Dr Danie Pauw. Sources: About.com