Pirodomast is a thromboxane A (TXA2) synthase inhibitor. Pirodomast inhibits leukotriene (LT) D4, C4, E4 formation and thromboxane B2 (TXB2) activity, but is weakly or ineffectively antagonistic to guinea pig bronchospasm induced by histamine, methacholine, serotonin, LTC4, or platelet-activating factor. Pirodomast is a potential antiallergic compound. Pirodomast had only weak relaxant activity on guinea pig trachea in vitro. Pirodomast is a potential antiallergic compound that inhibits the protein hydrolyzing activity of trypsin in vitro, prevents antigen-induced immediate and late asthmatic responses in allergic sheep in vivo, and inhibits antigen-induced airway hyperresponsiveness to histamine and carbachol in allergic sheep.

Hirullin P18 is a potent thrombin inhibitor with anticoagulant properties [1].

Heparin (Adomiparin) is a mucopolysaccharide sulfate often used as an anticoagulant in clinical medicine.Heparin has shown partial anti-inflammatory activity in in vivo experiments.

Odiparcil is an orally active beta-d-thioxyloside analog. Odiparcil is an indirect thrombin inhibitor that exerts its anticoagulant effect through activation of antithrombin II (heparin cofactor II). It also has an antithrombotic activity associated with a reduced risk of adverse bleeding events.

Flovagatran (TGN 255) is an orally active, potent, and selective inhibitor of thrombin and parenteral direct factor II.Flovagatran is used to study venous thromboembolism.