Pain controlling composition and method of preparation

Details Pain controlling composition and method of preparation Pain controlling composition and method of preparation

A - Human Necessities

61

K

A61K 31/24 (2006.01) A61K 31/245 (2006.01) A61K 47/10 (2006.01) A61K 47/26 (2006.01) A61K 47/34 (2006.01)

Patent

CA 2068232

A composition, for producing pain relief in a body region, comprises a sterile, stable suspension of butyl aminobenzoate in a non-toxic, aqueous carrying medium in which the butyl aminobenzoate is substantially insoluble. The aqueous carrying medium consists essentially of water as the major constituent and a suspending agent composed of (a) polyethylene glycol and (b) a wetting agent for the butyl aminobenzoate, with a ratio of (a) to (b) in the range of about 50/1 to 125/1. The butyl aminobenzoate is milled to a particle size in the range of about 5 to 50 microns in the presence of the suspending agent.

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