The study highlights a drug-dependent immune mechanism whereby thrombocytopaenia is caused by teicoplanin binding to the platelets, exposing the epitopes of the GP IIb-IIIa, which are recognized by IgG antibodies, concluding that the primary target for the antibodies is the platelet glycoprotein GP IIb-IIIa complex. Here, ART4 is linked to Thrombocytopenia.