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the Anatomical Therapeutic Chemical (ATC) classification system
Version for 2006
(World Health Organization)
Structure
In the Anatomical Therapeutic Chemical (ATC) classification system, the drugs are divided into different groups according to the organ or system on which they act and their chemical, pharmacological and therapeutic properties.
Drugs are classified in groups at five different levels. The drugs are divided into fourteen main groups (1st level), with one pharmacological/therapeutic subgroup (2nd level). The 3rd and 4th levels are chemical/pharmacological/therapeutic subgroups and the 5th level is the chemical substance. The 2nd, 3rd and 4th levels are often used to identify pharmacological subgroups when that is considered more appropriate than therapeutic or chemical subgroups.
The complete classification of metformin illustrates the structure of the code:
| A |
Alimentary tract and metabolism
(1st level, anatomical main group)
|
| A10 |
Drugs used in diabetes
(2nd level, therapeutic subgroup) |
| A10B |
Oral blood glucose lowering drugs
(3rd level, pharmacological subgroup) |
| A10BA |
Biguanides
(4th level, chemical subgroup) |
| A10BA02 |
Metformin
(5th level, chemical substance) |
Thus, in the ATC system all plain metformin preparations are given the code A10BA02.
- A - Alimentary tract and metabolism
- B - Blood and blood forming organs
- C - Cardiovascular system
- D - Dermatologicals
- G - Genito-urinary system and sex hormones
- H - Systemic hormonal preparations, excluding sex hormones and insulins
- J - Anti-infectives for systemic use
- L - Antineoplastic and immunomodulating agents
- M - Musculo-skeletal system
- N - Nervous system
- P - Antiparasitic products, insecticides and repellents
- Q - Veterinary drug
- R - Respiratory system
- S - Sensory organs
- V - Various
Comments
LINA SAEM STOEY
12 Nov 2007, 02:13
Dear Drugs About:
I am doing drug coding using ATC system. Some drug (chemical substance) has multiple ATC code. How do I know which one to use? Is there really a different? Or, if I just pick one, would it codes the same thing and be understood as the same chemical substance?
thanks!
Lina
Project Manager
CCBR
Denmark
Jagged
12 Nov 2007, 11:03
Hi Lina,
Most of active drugs ingredients have one ore more ATC codes. But most of drugs trade names have ATC codes only for their medical indications. For example, Ibuprofen has 20 ATC codes, but "Advil Extra Strength Liquidui-Gels" (it's the same Ibuprofen) has only M01AE01 code. So if you do drug coding with drugs INN (generic) names use all these codes, but for medicines trade names use only ATC codes for their indications ind usage.
Also you can find more info from ATC makers: http://www.whocc.no/atcddd/
LINA SAEM STOEY
13 Nov 2007, 01:29
Hi again,
Thanks for your response. This info helps!
Sincerely,
lina
Moamed yousef
20 Jun 2008, 22:30
In many websites we can find many different ATC CLASSIFICATION SYSTEMS HOW I CAN CHOOSE THE BEST AND ACCURATE SYSTEM
Merrel
25 Jul 2008, 08:16
why do you use ATC coding, why not use medDRA.
darshan
28 Jul 2008, 21:41
hi lina
you did not gives that which ATC is best for us.
pradip mer
21 Dec 2009, 07:07
my sister f/51yrs deveioped ca breast cancer on 28.3.2007 and was operated for it mrm on 30.3.2007 with 3 axillary nodes tre of one of 7 radio & chemo given she re developed nodule it scane on 14.04.09 & was operated on 17.04.09 for same & was radiated in june 09 she developed ca rt brest c pet scane shown metastesis in lungs & spine so she was give again chemotherapy for 18 seatings which completed on 09.11.09 new report as under 1)skull multiple spots 2)both scapulae and sternum 3)multiple ribs bilaternum 4)multiple vertebrae 5)pelvis 6)long bone of the upper and lower limbs
comments; abnormal bone scan consistent with widespread skeletal
metastasis
please suggest medicine for her
your faith fully
thank you
pradip mer
thank you
marc
21 Dec 2009, 07:12
I am on methadone and a friend of mine who is in the same clinic as I am is taking dormicum. Now he is addicted to it and with out it, he will go into withdrawals. How do one wane dormi. and stop? Is there a replacement drug like methadone or suboxone? Not only he is addicted to it, there are a few of the patients here too are taking it daily, if not than they will go into withdrawals. Is there any thing to counter it? thank you.
Dr Y B Chhatbar
31 Dec 2009, 03:22
My wife f/51yrs named Indu deveioped ca breast cancer on 28.3.2007 and was operated for it mrm on 30.3.2007 with 3 axillary nodes positive.After that radio & chemo given. she re developed nodule on same side and on 14.04.09 & was operated on 17.04.09 for same & was radiated in june 09.By that time she developed ca rt brest.pet scane showed metastesis in lungs & spine so she was give again chemotherapy for 18 seatings which completed on 09.11.09 new report as under 1)skull multiple spots 2)both scapulae and sternum 3)multiple ribs bilaternum 4)multiple vertebrae 5)pelvis 6)long bone of the upper and lower limbs
comments; abnormal bone scan consistent with widespread skeletal
metastasis
please suggest medicine for her
your faith fully
thank you
Dr Y B Chhatbar MS (ENT)
satish
31 Jan 2010, 05:10
hello sir, i'm b.pharmacy final year student, i'm doing work on project of biopharmaceutics classification system, i'm confused classification of drug according to therpeutic, chemical, based on organ how to catogrised here
thanks
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