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Prescription Writing

Oral Pharmacology –Fall 2016
Pharmacist (M.Sc.)
Esra Tariq Bayrakdar

Prescription Writing

Prescription is an order for medication written/issued by a physician, dentist or other registered medical practitioner and itis a part of the professional relationship among the physician, pharmacist and patient.

Elements of the Prescription

Name and address of the prescriber
Patient’s name, age, sex, addressand date
Superscription: It consists of Latinsymbol Rx meaning take thau or you take.
Inscription: It is the principal part or body of the prescription which specify the medication, its strength,the dosage and direction for use by the patients.
Subscription: This part of prescription consists of directions to the pharmacist for dispensing or preparing the prescription.
Signatura: The word, usually abbreviated sigma or sig means mark thou.
Prescriber’s signature and registra-tion number: This part consists of prescriber signature and registration number of respective medical or dental council which is also required as per law by every country.

Drug Prescribing in Dental Practice

Nature and course of disease
Basis for choosing a dosage form
Pharmacological actions and toxicity of drug
Possible interactions, in case of multiple drug therapy
Ways and means of assessing the efficiency and toxicity of drug used
Cost
How
Updates
Combination of drugs

Drug Prescribing in Dental Practice

Dosage form
Indicate the dose to administered clearly
Specify frequency and manner of administration as well as duration of therapy


In several kinds of mouth diseases ( infections , inflammation, ache) antibacterial drugs are used + antifungals ……. 3 times daily + Analgesics (as needed)
Ex.
Amoxicilline 500 mg capsule is used 3 times daily (every 8 hr) ( 1x3)…. Antibacterial
Metronidazole 500mg tablet (1x3)… Antifungal
Paracetamol 500 mg tablet (1x3) three times daily OR when needed …. Pain killer

For each drug you should mention how it should be used by the patient.

Before meals, After meals, With meals.
Take each tablet with enough amount of water.
Daily Doses:
1x1 : One tablet every 24 hours
1x2 : One tablet every 12 hours
1x3 : One tablet every 8 hours
2x1 : Two tablets every 24 hour
2x2 : Two tablets every 12 hours

For infectious diseases of mouth usually used antibacterials:

Amoxicilline , Amoxiclave , Azithromycin, Cefepime.
*If there is allergy to penicillin don’t use amoxicilline, amoxiclave, ampicillin, and other pencillin group drugs.
For Pain management using analgesic drugs for different cases that can be managed.
*(ibuprofen, aspirin, paracetamol, mefenemic acid (ponstan), Naproxen, Diclofenac Na, Diclofenac K⁺) tablets.


Avoid using antiplatelet drugs for patients have risk of bleeding …

Avoid using some analgesic drugs that contain salt for hypertensive patients…Ex. Voltaren (contains Na)

Analgesic drugs are used according to the doctor`s prescription as needed for the patient. (On need=O.N)
Analgesics are also antienflammatory agents that are also used to reduce inflammatory cases.

Dental practices might wish to stock the following to aid the management of patients with mild allergic reactions:
Cetirizine 10 mg tablets or oral solution (5 mg/5 ml)
Chlorphenamine, 4 mg tablets or oral solution (2 mg/5 ml)
Loratadine, 10 mg tablets

An appropriate 5-day regimen is a choice of antibiotic:

In patients who are allergic to penicillin, an appropriate 5-day regimen is:

Remember!!!

Take patient history before prescribing drugs.

Past medical history (PMH)

Drug Allergy (DA)
Chronic diseases
Family disease history