I take Clonidine and it works great for me! Really, you just have to keep trying them until you find the one that works for you. Everyone is different and everyone responds differently to medications.  Also, if you increase you magnesium intake- this will help lower you blood pressure. Limiting the amount of sodium in your diet may help too. Reducing stress, will greatly lower BP and so I also "meditiate" not in the traditional sense though- I just put on calming music and relax for about 20min.- no disruptions and this helps reset your bodies levels of stress hormones.  If you just take 20min. a day to be alone and relax this will greatly help you BP. If you can't do 20min. then do however much time you can, even 5min of relaxation is better than not doing any!

I have had high BP since 21 years old and on tenormin and maxzide (a potassium-sparing form of HCTZ) over the years.  It runs in the family and my stress level tends to run on the high side which contributes t it too. 

Melissa.