hierarchy - a series of ordered groupings of people or things within a system; put honesty first in her hierarchy of values. 1  celestial hierarchy - the collective body of angels. 2  data hierarchy - an arrangement of data consisting of sets and subsets such that every subset of a set is of lower rank than the set. taxonomy - a classification of organisms into groups based on similarities of structure or origin etc.
Fludrocortisone and Midodrine are both medications that can help raise blood pressure. Ask your physician if one of these medications would be right for your situation. People are not generally prescribed medicine for low blood pressure, as it's not often a cause for concern unless it presents with symptoms.
It's possible that caffeine can cause a short, but dramatic increase in your blood pressure, even if you don't have high blood pressure. The amount of caffeine in two to three cups of coffee can raise systolic pressure (the top number in your blood pressure reading) 3 to 14 millimeters of mercury (mm Hg). Your diastolic pressure (the bottom number) can be increased 4 to 13 mm Hg. It's unclear what causes this spike in blood pressure.