Guidelines for ATC classification and DDD assignment - WHOCC

B01AD Enzymes
Lysine acetylsalicylate is classified at the same 5th level as
acetylsalicylic acid.
Sulfinpyrazone is classified in M04AB. Alprostadil is classified in
C01EA and G04BE.
Combinations of acetylsalicylic acid and statins are classified in C10B.
Combinations of ramipril, simvastatin, and acetylsalicylic acid are
classified in C10BX.
The DDDs are based on prophylaxis of thrombosis. The DDDs of
acetylsalicylic acid and carbasalate calcium are given as 1 tablet
independent of tablet strength. This is due to the great variations
between different countries in the dosages/strengths recommended
for prophylaxis of thrombosis.
The DDD of iloprost is based on treatment of peripheral vascular
disease.
For combinations products, see list of DDDs for combinations,
www.whocc.no.
The DDDs of streptokinase, alteplase, anistreplase and reteplase are
based on thrombolytic treatment in connection with acute
myocardial infarction. The DDD of urokinase is based on
treatment of acute lung emboli. The DDDs are either expressed in
international units or gram.
B01AE Direct thrombin inhibitors
B01AX Other antithrombotic agents
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