The invention discloses a preparation method of a
medicine for treating hypertension and relates to the preparation method of the
medicine for treating hypertension. The preparation method comprises the following steps of: firstly, adding
ethanol to soak waternut culm, heating up the
mixed solution until the
mixed solution is reflowed, filtering the
mixed solution, collecting the filtrate for future use, carrying out
reflux extraction on the filter residue twice, combining the filtrates, filling the combined filtrate to a
rotary evaporator, and recycling the
ethanol under reduced pressure; and secondly, putting residual thick paste in a rotary
bottle to an
evaporating dish,
drying the thick paste in a water bath, putting the dried thick paste to a
drying box, obtaining the
ethanol-extraction substance dry paste by
drying, pulverizing the dry paste to obtain granular
powder with active ingredients, namely completing the preparation process. According to the preparation method disclosed by the invention, the hypertension ethanol extract has a good effect for treating renal hypertension and better safety, so that a new scheme is provided for developing the
traditional Chinese medicine neurogenic hypertension
drug, and a novel strategy is provided for treating the hypertension. The prepared
medicine for treating the hypertension can be used for effectively reducing
blood pressure and reducing systolic pressure more remarkably relative to diastolic pressure, is free of side effects, not capable of damaging visceral organs after being taken for a long time, small in
drug dependence and
safer in
drug use.