What is the substitute for this medication?
Patient: sir igot angioplasty on29-11-12 and taking clopidogrel bisulphate and istartedgetting itching and rashes onbody .i am allergic to sulpha drugs . is it due to this medicine or  some other .what is the substitute for clopidogrel bisulphate?   YYYY@YYYY Doctor: Sir as one year has already passed post angioplasty,  a single antiplatlet aspirin 75mg would be enough and you don't need clopidogrel (as per standard America / European guidelines) .  Still if you prefer clopidogrel  this a clopidogrel carboxylate preparation is available,  however I think the the reaction might be due to clopidogrel compound itself rather than its salt.