Warning: I am on the blood pressure medicine, lisinopril. Yesterday I took a black ant pill; about an hour later I started some aerobic exercise. After about 15 minutes I got light headed, then started seeing spots, and finally I decided to go to the floor. I was exhausted and sweaty. I got the blood pressure machine and the reading was 66 over 42. My wife got me a Mountain Dew for the caffeine and I got my blood pressure up to 85 over 64. Within an hour I was back to normal, but it was a little bit of a scare. This may have been a combination effect that only applied to me, but I thought you all should know about it.