Precipitated silicas which contain an active substance

Details Precipitated silicas which contain an active substance Precipitated silicas which contain an active substance

A - Human Necessities

61

K

A61K 8/25 (2006.01) A61Q 11/00 (2006.01)

Patent

CA 2255398

A precipitated silica which contains an active substance having a delayed, release of active substance is prepared by adding the active substance during preparation of the precipitated silica. The precipitated silica may be added to oral hygiene agents such as toothpastes, topical fluoride preparations, dental materials or medicinal chewing gums.

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