My Dr and I have been trying to find a bp medicine that I can tolerate. Of the past 15 different drugs we have tried the side effects have ranged from being severe to scary and finally put me in the hospital over night.. Drs seem to have a hard time accepting that your suffering from side effects. Tell your dr you won't tolerate it any more and try something different. Hopefully we finally found one, methyldopa ( aldomet) hopefully my blood tests come back ok there is only 2 more to try. Also it's very important to do your own research. You can find the chemical composition of every drug on the internet, right now I'm very happy with the 150 range