high blood pressure
"My blood pressure was controlled at 120/80, but... after 18 months on Benicar,  I was diagnosed with ulcerative colitis (not good).  So to remedy the UC, I had to take a drug that cost $8000 per year because doctors did not know at the time that Benicar causes UC in some people.     
I think people should be aware of this very BAD side effect before starting Benicar."