DRUG-DRUG INTERACTION STUDIES OF CARDIOVASCULAR DRUGS (AMIODARONE, DIGOXIN, QUINIDINE, ATORVASTATIN AND VERAPAMIL) INVOLVING P-GLYCOPROTEIN (P-GP), AN EFFLUX TRANSPORTER, ON THE PHARMACOKINETICS (PK) AND PHARMACODYNAMICS (PD) OF EDOXABAN, AN ORAL FACTOR XA INHIBITOR