high blood pressure
"I have been taking it for 10 days and am shocked by the side effects - starting with very dizzy, continuous headache, very tired. Warns against doing anything needing alertness!  How can people in full time jobs take this? Then in the last days developed runny nose, sore throat and now for 3 days i have trouble getting my breath - even just talking on the phone. So i am now coming off it - cutting dose in half for a few days (dose was only 1.25). unimaginable to take more of it.  I take felodopine as well as read that its not necessarily a good idea to take it with that drug too.  Pretty bad."