Provided is a method of treating hypertension, which comprises administering
an effective amount of a compound represented by the following formula (1) or (2):
##STR1##
wherein, R1 and R2 are the same or different and each
independently represents hydrogen, alkyl, alkenyl, cycloalkyl, cycloalkenyl, alkoxyalkyl,
aryl, alkylaryl, aralkyl, or acyl, R3 represents hydroxyl, ester bond
residue, or amide bond residue, R4 represents ester bond residue or
amide bond residue, or a pharmaceutically acceptable salt thereof (except ferulic acid).
When the preventive or remedy for hypertension according to the present invention
is administered, ferulic acid exists in the blood for a long period of time, thereby
continuously suppressing a blood pressure rise. Moreover, the hypertension preventive
or remedy according to the present invention has reduced in bitterness peculiar
to ferulic acid, which enables patients to take it continuously.
