Menadione (Vitamin K3) is a synthetic naphthoquinone without the isoprenoid side chain and biological activity, but can be converted to active vitamin K2, menaquinone, after alkylation in vivo.

Ozagrel (Domenan) is a selective thromboxane A(2) (TXA(2)) synthetase inhibitor with IC50 of 11 nM for rabbit platelet, used for the improvement of postoperative cerebrovascular contraction and accompanying cerebral ischaemia.

Eltrombopag Olamine (Eltrombopag diethanolamine salt) is an orally active small-molecule, nonpeptide thrombopoietin receptor agonist that stimulates megakaryopoiesis. It binds to and activates the transmembrane domain of the platelet thrombopoietin receptor (TPO-R or CD110), promoting the proliferation and differentiation of megakaryocytic cells and enhancing platelet production.

Edoxaban (Lixiana) (DU-176) is a selective, potent and orally active factor Xa (FXa) inhibitor with K i s of 0.561 nM and 2.98 nM for free FXa and prothrombinase, respectively. Edoxaban is an anticoagulant agent and is able to be used for stroke prevention. Edoxaban is a also weak inhibitor of thrombin and factor IXaβ (FIXa), with K i s of 6.00 μM and 41.7 μM, respectively, exhibits >10 000-fold selectivity for FXa. Edoxaban has antithrombotic properties and is potential for thromboembolic diseases treatment [1] [2] [3].

Thrombin (MW 37kDa) is an allosteric serine protease with trypsin-like activity.

p-Hydroxycinnamic acid (NSC-59260) can inhibit platelet activity, with IC50s of 371 μM, 126 μM for thromboxane B2 production and lipopolysaccharide-induced prostaglandin E2 generation, respectively.

Argatroban (MCI-9038), a specific thrombin inhibitor, which is a non-heparin anticoagulant, prevents the formation of thrombi.

Avatrombopag (YM477) is a new oral thrombopoietin (TPO) receptor agonist, activating TPO receptor and increasing megakaryocytic proliferation/differentiation and platelet production.