You would be better off searching this off in a google search box. Simply for blood pressure i would think clonodine is better in terms of getting it down faster.
Note the information on the page isn't scientific, but based on patient reviews. That said, take it's reliability FWIW. I don't feel like digging through medical journals at the moment to likely find the same thing. Bottom line is that everyone reacts differently to different medications, so if this is a genuine concern talk with your doctor. Many issues of medication efficiency are sadly determined by trial and error.