Can you use something other than warfarin for hypercoagulable states for somebody who had cerebral infarcts?

Yes. If it is thought that the cerebral infarcts are a result of a hypercoagulable state, then other medications besides warfarin can be used. Aspirin is often used after a stroke to prevent another, as are Plavix (clopidogrel) and aggrenox. Other blood thinners more along the lines of warfarin are the heparins, arixtra, and some newer drugs like Pradaxa and xarelto, but these are only approved in atrial fibrillat.