<qa>  What is the name of the receptor blocker that is being evaluated by Takeda?Although most antihypertensive agents are effective at the appropriate dose, the majority have side effects that limit their use. As a class, angiotensin II receptor blockers generally are considered more tolerable than other classes of antihypertensive agents. TAK-491 azilsartan medoxomil is an angiotensin II receptor blocker being evaluated by Takeda to treat essential hypertension. 