I did a short course of these about 4 years ago. Didn't work for me at all and I had a fair selection of the side effects from the leaflet. Apparently, you are supposed to have your blood pressure monitored while taking them. My doctor didn't bother and it's only when I tried a home monitor and found my BP had risen to 180/100 that I went back to the GP and was promptly taken off them. Not surprised they've been withdrawn but it's a bit poor that the reasons for it weren't picked up during initial trials.