Glycoprotein IIb/IIIa receptors are altered in their conformation by stimulators such as thrombin, ADP, thrombaxane, collagen, platelet activating factors and adrenaline and express high-affinity fibrinogen binding sites. This is where the blocking drugs attack. GPIIb/IIIa antagonists used in the clinic are monoclonal antibodies.
Currently on the market are:
- Abcimiximab
- Eptifibatide
- Tirofiban