How to write a prescription
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How to write a prescription


How to write a prescription

  • The prescription order is an important therapeutic transaction between physician and the patient. It brings into focus the diagnostic acumen and therapeutic proficiency of the physician with the instructions for palliation or restoration of patient´s health. The physician must also clearly communicates with the pharmacist and adequately instructs the patient on how to take the prescribed drug.

How to write a prescription

There is no global standard for prescriptions and every country has its own regulations.

The most important requirement is that the prescription be clear.

A identification of the patient

A) identification of the patient

  • name, initials and address

  • age of patients under 12 years must be given

  • age in adult (mainly elderly) patients may be useful but it is not essential

B the name of drug

B) the name of drug

  • preferably in capitals

  • approved (generic) name

  • proprietary (brand-name or trade name)

How to write a prescription

  • Example:

  • chemical name: 6-[[ amino(4-hydroxyphenyl)actyl]-amino]-3,3-dimethyl-7-oxo-4-thia-1- azabicyclo[3.2.0]heptane-2-carboxylic acid

  • generic name: amoxyciline

  • proprietary name: Almodan,Amoxil

C the dose of drug

C) the dose of drug

  • quantities of 1 gram or more should be writte in grams (2 g)

  • quantities less than 1 gram but more than 1 milligram should be written in milligrams (100 mg, not 0.1 g)

  • quantities less than 1 milligram should be written in micrograms or nanograms do not abbreviate milligrams and nanograms - errors (100 micrograms, not 0.1 mg, nor 100 mcg nor, 100 ug nor, 100g)

  • if a decimal point cannot be avoided, write 0.5 not .5

  • use mL for milliliters

D frequency of administration

D) frequency of administration

  • have to be clearly indicated

  • accepted abbreviations

E route and method of administration

E) route and method of administration

  • route of administration should be clearly indicated (oral, sublingual, i.m.)

F amount to be supplied

F) amount to be supplied

  • for example, the precise number of tablets

  • simpler is to indicate period of treatment

G the presciber s signature

G) the presciber´s signature

Minimum information that should be given to the patient

Minimum information that should be given to the patient.

1.Effects of the drug

Why the drug is needed

Which symptoms will disappear, and which will not

When the effect is expected to start

What will happen if the drug is taken incorrectly or not at all

2.Side effects

Which side effects may occur

How to recognize them

How long they will continue

How serious they are

What action to take

How to write a prescription


How the drug should be taken

When it should be taken

How long the treatment should continue

How the drug should be stored

What to do with left-over drugs


When the drug should not be taken

What is the maximum dose

Why the full treatment course should be taken

How to write a prescription

5. Future consultations

When to come back (or not)

In what circumstances to come earlier

What information the doctor will need at the next appointment

6.Everything clear?

Ask the patient whether everything is understood

Ask the patient to repeat the most important information

Ask whether the patient has any more questions

How to write a prescription

  • Acidi Acetylosalicylici 0,3

  • Paracetamoli 0,3

  • Amobarbitali 0,05

  • Misce fiat pulvis (M. f. pulv.)

  • Dentur tales doses No XX (viginty)

  • Da ad capsulam amylaceam

  • D.S. etc

  • Aspirin 300 mg

  • Paracetamol300 mg

  • Amobarbital 50 mg

  • Make 20 such doses and place in capsules

  • Label: etc

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