Transcript EO 003.01 - Part 16 - Intro to ATC Drug Codes

Intro to ATC Drug Codes
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EO 003.01 Part 16
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Importance of Lesson
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Pharmacy technicians are
required to have a basic
understanding of drug
classification in order to
understand where and how
a given drug works in the
body as well as its
therapeutic use.
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Overview of Lesson
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Define ATC
Role of the World Health Organization
(WHO)
Organization of the ATC Drug Codes
Example of Drug Classification
What a Pharmacy Technician needs to know
1st level of classification
2nd level of classification
3rd level of classification
4th level of classification
5th level of classification
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What does ATC mean?
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ATC = Anatomical Therapeutic Drug
Classificaiton System
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Active substances are divided into
different groups according to the organ
or system on which they act and their
therapeutic, pharmacological and
chemical properties.
Active substance = ingredient in the
medication that causes effect (i.e. lowers
blood pressure).
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Role of the World Health Organization (WHO)
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The World Health Organization (WHO)
publishes guidelines for ATC drug
classification and DDD assignment.
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DDD assignment = Defined Daily Dose
Updates to the document occur yearly
and can be found on the WHO website.
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Organization of the ATC System
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Drugs are classified at 5 different
levels:
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1st level – anatomical site of action
where it acts in the body
2nd level –therapeutic subgroup
what it is used for
3rd / 4th level – pharmacologic subgroup
or a further therapeutic class or chemical
class
type of drug or a more
specified use for the drug or a
chemical class of drug
5th level – chemical substance
the name of the actual drug
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Example: Sucralfate
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How is Sucralfate Classified?
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1st level – anatomical site of action
where it acts in the body
2nd
level –therapeutic subgroup
what it is used for
3rd / 4th level – pharmacologic subgroup
or a further therapeutic class or chemical
class
type of drug or a more
specified use for the drug or a
chemical class of drug
1st level - A (alimentary tract and metabolism)
2nd level – A02 drugs for acid related disorders
3rd level – A02B drugs for peptic ulcer disease and
gastroesophageal reflux disease (GERD)
4th level – A02BX other drugs for peptic ulcer
disease and gastroesophageal reflux disease
(GERD)
5th level – A02BX02 sucralfate
5th level – chemical substance
the name of the actual drug
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What do I need to know as a Pharmacy
Technician?
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It is NOT necessary for a pharmacy
technician to know all 5 levels of
classification for a given drug (i.e.
metformin = A10BA02) .
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What is important is to understand are
the following:
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Where the drug acts in the body
Therapeutic use (indication)
Basic pharmacological class
The ATC system is a useful tool to
remember this information.
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1st Level of Classification : Anatomical Site of Action
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Alimentary Tract and Metabolism (A)
Blood and blood forming agents (B)
Cardiovascular (C)
Dermatologicals (D)
Genitourinary system and sex hormones
(G)
Systemic hormonal preparations, excl.
Sex hormones and insulin (H)
Antiinfectives for Systemic Use (J)
Antineoplastics and
Immunomodulators (L)
Musculoskeletal System (M)
Nervous System (N)
Antiparasitic products, insecticides and
repellents (P)
Respiratory System (R)
Sensory Organs (S)
Various (V)
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2nd Level of Classification : Therapeutic Use
Example From: Alimentary Tract and Metabolism (A)
A01 – Stomatological preparations
A02 – Drugs for acid related disorders
A03 – Drugs for functional Gastrointestinal Disorders
A04 – Antiemetic and antinauseants
A05 – Bile and Liver Therapy
A06 – Drugs for constipation
A07 – Anti-diarrheals, Anti-inflammatories and Antiinfectives for the
gastrointestinal tract
A08 – Anti-obesity preparations (excl diet products)
A09 – Digestives (incl enzymes)
A10 – Drugs used in diabetes
A11 – Vitamins
A12 – Minerals
A13 – Tonics
A14 – Anabolic Steroids for Systemic Use
A15 – Appetite Suppressants
A16 - Other
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3rd Level of Organization : Further Therapeutic Class or
Pharmacologic Class
Example From: A02 Drugs Used in Acid Disease
A02A – Antacids
A02B – Drugs for Peptic Acid Disease and Gastroesophageal Reflux Disease
A02X - Other Drugs for Acid Related Disorders
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4th Level of Organization: Pharmacologic Class or
Chemical Class
Example From:
A02B – Drugs for Peptic Acid Disease and Gastroesophageal Reflux Disease
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A02BA : H2-receptor antagonists
A02BB : Prostaglandins
A02BC : Proton pump inhibitors
A02BD : Combinations for eradication of Helicobacter pylori
A02BE : Other drugs for peptic ulcer and gastro-oesophageal reflux
disease
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5th Level of Classification : Name of Substance
Example From : A02BE : Other drugs for peptic ulcer and gastro-oesophageal
reflux disease
sucralfate
Note: The ATC System only uses generic names of medication (this topic will be
covered in greater detail in EO 003.03.
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Questions?
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In-class Assignment
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1. What does ATC mean?
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A) Anatomical Taxonomy
Classification System
B) Anatomical Therapeutic
Classification System
C) Anatomical Theory Classification
System
D) Appropriate Therapeutic
Classification System
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1. Answer: What does ATC mean?
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A) Anatomical Taxonomy
Classification System
B) Anatomical Therapeutic
Classification System
C) Anatomical Theory Classification
System
D) Appropriate Therapeutic
Classification System
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2. How many levels of classification are there in
the ATC system?
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A)
B)
C)
D)
4
3
5
2
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2. Answer: How many levels of classification are
there in the ATC system?
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A)
B)
C)
D)
4
3
5
2
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3. Answer: The ATC code for sucralfate is
A02BX02, what does the ‘A’ indicate?
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A)
B)
C)
D)
The anatomical site of action
The therapeutic use of the drug
The chemical class of the drug
The pharmacological class of the
drug
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3. The ATC code for sucralfate is A02BX02, what
does the ‘A’ indicate?
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A)
B)
C)
D)
The anatomical site of action
The therapeutic use of the drug
The chemical class of the drug
The pharmacological class of the
drug
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4. The ATC code for metformin is A10BA02,
what does ‘10’ indicate?
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A)
B)
C)
D)
The anatomical site of action
The therapeutic use of the drug
The chemical class of the drug
The pharmacological class of the
drug
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4. Answer: The ATC code for metformin is
A10BA02, what does ‘10’ indicate?
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A)
B)
C)
D)
The anatomical site of action
The therapeutic use of the drug
The chemical class of the drug
The pharmacological class of the
drug
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5. The 3rd and 4th levels of classification indicate
what?
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A)
B)
C)
D)
A further therapeutic class
A chemical class
A pharmacologic class
All of the above
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5. Answer: The 3rd and 4th levels of classification
indicate what?
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A)
B)
C)
D)
A further therapeutic class
A chemical class
A pharmacologic class
All of the above
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