Transcript Pharmacokinetics

Rational Prescribing
&
Prescription Writing
Collected and Prepared
By
S.Bohlooli, Pharm.D, PhD
Introduction
• After reaching to the Diagnosis, the practitioner
can often select from variety of therapeutic
approaches.
–
–
–
–
–
–
–
–
Drug therapy
Surgery
Psychiatric treatment
Radiation
Physical therapy
Health education
Counseling
No therapy
Rational Prescribing
1.
2.
3.
4.
5.
6.
Make a specific diagnosis
Consider the pathophysiologic implications
Select a specific therapeutic objective
Select a drug of choice
Determine the appropriate dosing regimen
Devise a plan for monitoring the drug’s action
and determine an end point for therapy
7. Plan a program of patient education
The Prescription
Elements of the Prescription
1.
Identity of prescriber
•
2.
3.
4.
Date
Name and address of patient
Body of prescription
•
•
5.
6.
Name, license classification, address, office telephone number
Medication, the strength, quantity
Dosage and complete directions for use
Refill information , waiver for child proof and additional
labeling instructions
Prescriber Signature and other Identification Data
Abbreviation Used in Prescriptions & Chart Orders
Prescriptions should be legible, unambiguous, dated and timed
Prescribing Errors
•
Omission of Information
As needed (prn)
•
Poor Prescription Writing
 Illegible handwriting
 Ambiguous decimal points
•
Inappropriate Drug Prescription
 Failure to recognize contraindications by other
disease
 Failure to obtain information about other drugs
 Failure to recognize possible physicochemical
incompatibility
Compliance
• The extent to which patients follow the treatment
instructions
• Types of noncompliance
 The patient fail to obtain the medication
 The patient fail to take the medication as prescribed:
wrong dosage, wrong frequency of administration,
improper timing, wrong route or technique of
administration, taking medication for the wrong
purpose
 The patient prematurely discontinue the medication
 The patient takes medication improperly.
Strategies to improve compliance
• Enhanced communications
• Assessment of personal, social and
economic conditions
• Development of a routine for taking the
medications
• Provision of systems to assist taking
medications
• Mailing of the refill reminders by pharmacist
Labeled and Unlabeled Uses of
Drugs
Socioeconomic factors
• Generic Prescribing
If the physician wants a particular brand of
drug product dispensed handwriting
instruction to “Dispense as written “ is
required.
• Other Cost Factors
Professional service fee

Good Luck