The invention provides a preparation method of
levocetirizine hydrochloride granules, which comprises the following steps: S1, mixing
sodium alginate with deionized water,
sodium hydroxymethyl starch, hydroxypropyl methylcellulose and
maltitol, and performing
ultrasonic oscillation and uniform mixing to obtain a
mixed solution; s2, uniformly mixing
levocetirizine hydrochloride with hydroxypropyl-beta-
cyclodextrin,
sodium bicarbonate and
lactose to obtain a mixed material A; s3, uniformly mixing the
mixed solution with the mixed material A to obtain a mixed material B; and S4, carrying out wet
granulation,
drying and dry
granulation on the mixed material B by using an oscillating granulator, mixing with
sucralose, and subpackaging to obtain the
levocetirizine hydrochloride granules. Through a specific
raw material formula and control of preparation
process conditions, the particle uniformity of the
levocetirizine hydrochloride particle
medicine can be improved, the production efficiency can be improved, meanwhile, the stability of the
levocetirizine hydrochloride medicine in the storage period can be improved, the product quality is not obviously changed, and the
levocetirizine hydrochloride particle
medicine has a good application prospect.