I definitely agree with Lenin on this. When I was first diagnosed, they put me on Altace, another Ace drug. It did nothing for my BP, but after a few months, I got a very heavy cough, not a dry one either, alot of phelm, and once I started coughing, it was an ongoing thing for at least 15 minutes at a time. Then I started with heart palps, and diarrhea for a few months. Dr. didn't think it was the pills, but I finally insisted to be changed, so they switched me to Avapro, an ARB. Took the cough about 3 weeks to stop, but everything else was doing better. 4 months ago I noticed the diarrhea coming back, had all sorts of tests done, found nothing. Dr. told me to stop the pills, but after 7 days I got jittery and went back on, but then started cutting the 150 in half, so now taking 75mgs., and I feel fine, and BP is still ranging about 118-125/72-78. Hopefully this is it!! Yes, price of them is high unfortuneately.
Good luck, it is all trial and error....