The medication you are receiving lowers the afterload by decreasing the resistance the heart pumps against. My medication is lisinopril
(ACE inhibitor) and coreg (beta blocker
My cariologist wants my blood pressure less than 120/80, and as low as possible without side effects. The coreg with lisinopril does dilate the vessels and maintains heart rate stability, and if there is a side effect of lightheadedness, etc. the doctor would adjust or find the medication that is right for you.