Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Cyclopentanohydrophenanthrene ring system doai
Reexamination Certificate
2006-04-14
2010-11-23
Padmanabhan, Sreeni (Department: 1627)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Cyclopentanohydrophenanthrene ring system doai
C514S372000, C514S642000
Reexamination Certificate
active
07838515
ABSTRACT:
Muscle relaxant formulations which include one or more quaternary ammonium neuromuscular blocking agents have a reduced tendency for hydrolytic degradation, and therefore a longer shelf life stability, when combined with one or more organic anions having at least six carbon atoms and having a pKa of less than 4.0 (preferably ranging from 0.5 to 3.5). Particularly good results are achieved when using acids of very low solubility in water, such as gentisic acid which is less than 1% soluble at room temperature.
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Carter Kendra D
Lyotropic Therapeutics, Inc.
Padmanabhan Sreeni
Whitham Curtis Christofferson & Cook, P.C.
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