HFC solution formulations containing an anticholinergic

Details HFC solution formulations containing an anticholinergic HFC solution formulations containing an anticholinergic

2007-09-25

2007-09-25

Richter, Johann R. (Department: 1616)

Drug, bio-affecting and body treating compositions

Effervescent or pressurized fluid containing

Organic pressurized fluid

C514S291000, C546S091000

Reexamination Certificate

active

10882494

ABSTRACT:
An aerosol solution formulation comprising:(a) a salt of formula 1wherein X−is an anion(b) an HFC propellant;(c) a cosolvent; and(d) an inorganic or an organic acid, wherein the concentration of the acid is in a range that corresponds with a pH range of 2.5 to 5.5 in aqueous solution.

REFERENCES:
patent: 2003/0089369 (2003-05-01), Lewis et al.

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