Best resource for
this information is to look up the PI (Prescribing Information), FDA
approved summary of research & clinical trial
data on agent, available at: http://packageinserts.
bms.com/pi/pi_eliquis.pdf. One can usually find this information at the brand name website (before patent expires) or http://www.fda.gov/Drugs/default.htm & search. Keep in mind: responses not due to agent also listed.