PHARMACOTHERAPY OF ACS PART 3 ::
Newer agents like ticlopidine and clopidogrel were developed initially as an adjunct to aspirin The antiplatelet action of ticlopidine is principally exerted by blocking the ADP- mediated activation of platelet GP IIb /IIIa receptors
Since GP IIb/IIIa receptor is the final common pathway by which platelet aggregation takes place direct inhibition of this receptor is likely to prove superior to blockers of only some of the pathways Various antagonists of GP IIb/ IIIa are currently receiving considerable attention from pharmaceutical industry and are being studied in a variety of clinical settings Significant efforts have also been made to design potent antagonists of this final common pathway of platelet aggregation to be used as novel therapeutic strategies to treat thrombosis that leads to acute coronary syndromes Although several different GP IIb/IIIa antagonists have convincingly demonstrated the usefulness of this platelet direct therapeutic strategy a number of lingering unsolved and sometimes misunderstood issues concerning the pharmacology and optimal clinical usefulness of these agents remain to be explored
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