ATC Group: B02AA Amino acids

The World Health Organization's ATC classification organizes medical drugs based on therapeutic properties, chemical composition, and anatomy. It helps make essential medicines readily available globally and is widely used in the pharmaceutical industry.

Position of B02AA in the ATC hierarchy

Level Code Title
1 B Blood and blood forming organs
2 B02 Antihemorrhagics
3 B02A Antifibrinolytics
4 B02AA Amino acids

Group B02AA contents

Code Title
B02AA01 Aminocaproic acid
B02AA02 Tranexamic acid
B02AA03 Aminomethylbenzoic acid

Active ingredients in B02AA

Active Ingredient

Aminocaproic acid is 6-aminohexanoic acid, which acts as an inhibitor of fibrinolysis. The fibrinolysis-inhibitory effects of aminocaproic acid appear to be exerted principally via inhibition of plasminogen activators and to a lesser degree through antiplasmin activity.

Tranexamic acid is an antifibrinolytic that competitively inhibits the activation of plasminogen to plasmin. Tranexamic acid is a competitive inhibitor of plasminogen activation, and at much higher concentrations, a noncompetitive inhibitor of plasmin, i.e., actions similar to aminocaproic acid. Tranexamic acid is about 10 times more potent in vitro than aminocaproic acid. Tranexamic acid binds more strongly than aminocaproic acid to both the strong and weak receptor sites of the plasminogen molecule in a ratio corresponding to the difference in potency between the compounds.

Related product monographs

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