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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1195138Generated: November 1, 2026

Silica → Azelastine

https://huagongshe.com/reaction/1195138

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSilicaHCID 24261—
ReactantAzelastine hydrochlorideHCID 54360—
ReactantLactose monohydrateHCID 62223—
ProductAzelastineHCID 2267—

Reaction Steps

A premix is prepared of 440 g of azelastine-HCl, 360 mg of micro crystalline cellulose and 200 g of talcum. This premix together with 6000 g of lactose monohydrate, 2870 g of microcrystalline cellulose and 100 g of highly disperse silicon dioxide are passed through a sieve and homogenized in a sutable mixer. 30 g of magnesium stearate are sieved into the mixture so obtained and the resulting mixture is homogenized one more time. The mass so obtained is pressed into tablets weighing 100 mg having a diameter of 6 mm and a radius of curvature of 5.5 mm.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05110814
Source datasetuspto-grants-1992_05
ORD IDord-aaa964cbfa0b49a386e02b2e143deafb
Source noteuspto-grants-1992_05