The invention provides a preparation method of an
apocynum venetum antihypertensive lozenge, which comprises the following steps: (1) pretreatment of
apocynum venetum leaves: withering fresh
apocynum venetum leaves, performing fixation, rolling and
drying in the sun, and keeping the
water content to be less than or equal to 8% to obtain dry
apocynum venetum tea; (2) preparation of an
apocynum venetum extract: carrying out warm immersion extraction on dried
apocynum venetum tea, collecting filtrate, and carrying out vacuum concentration and
drying to obtain dry paste; and (3) tabletting the apocynum venetum: uniformly mixing the dry paste with non-dairy creamer and D-
mannitol, granulating, adding a
lubricant, and tabletting to obtain the apocynum venetum buccal tablet. According to the apocynum venetum lozenge disclosed by the invention, the quick release of effective components in a body is ensured, the effective absorption of the effective components is ensured, the content of total flavonoids per 100g is 3.4 g or above averagely, and the content of
hyperoside per 100g is 43mg or above; the lozenge is convenient to prepare, transport, carry and store; the
traditional Chinese medicine composition is good in taste, convenient to take and clinically use, attractive in appearance, easier to accept by patients and also suitable for market requirements.