Vasodialators

What are the two primary drugs in this class?

Which class acts on arterioles  but has frequent side effects?

What is an organic nitrate that acts on veins (less effective in monotherapy)?

What two classes work synergistically in the treatment of HF?

What drug is a fixed dose combination f 20mg of isosorbide dinitrate with 37.5 mg of hydralazine?

What is the hormone that signals the ventricle walls to stretch and enhances diuresis and renal excretion of sodium?