Daiichi Sankyo, Inc. announced that the US Food and Drug Administration (FDA) approved Tribenzor (olmesartan medoxomil, amlodipine, hydrochlorothiazide), a new three-in-one combination product taken once-daily for the treatment of hypertension in patients who are not adequately controlled on any two of the following antihypertensive drug classes: angiotensin receptor blockers, calcium channel ...