Clonidine
"For some reason this was the very first med my dr. RX'd me for hypertension at a dosage of 0.1mg twice a day..It lowered my BP but not by much so he increased it to 0.2mg twice per day. Bp still high and he AGAIN increased to 0.2 3 x a day. It lowered my BP very little but mostly it just made me groggy and gave me dry mouth. He finally added metoporol xr and my bp is getting better. However, the clonodine does come in handy for other things like opiate withdrawal, sleep and headache prevention."