Special receptacle or package – Combined or convertible – Packaged assemblage or kit
Reexamination Certificate
2004-03-31
2008-07-29
Wilson, James O. (Department: 1624)
Special receptacle or package
Combined or convertible
Packaged assemblage or kit
C424S434000, C424S001730, C435S086000, C536S026400
Reexamination Certificate
active
07404489
ABSTRACT:
A stable pharmaceutical mercury-free aqueous solution of cyanocobalamin comprised of cyanocobalamin and water wherein said solution of cyanocobalamin is suitable for intranasal administration, has a viscosity less than about 1000 cPs, and wherein said solution of cyanocobalamin has a bioavailability of cyanocobalamin when administered intranasally of at least about 7% relative to an intramuscular injection of cyanocobalamin with the proviso that the solution is essentially free of mercury and mercury-containing compounds. The present invention is also directed towards a method for elevating the vitamin B12 levels in the cerebral spinal fluid (CSF) comprising administering intranasally a sufficient amount of a mercury-free cyanocobalamin solution so as to increase the average ratio of vitamin B12 in the CSF to that in the blood serum (B12 CSF/B12 Serum×100) to at least about 1.1 comprising intranasally administering an aqueous solution of a cyanocobalamin, wherein said solution of cyanocobalamin has a bioavailability of at least 7% relative to an intramuscular injection of a cyanocobalamin.
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Aprile Peter C.
Go Zenaida O.
Quay Steven C.
Sileno Anthony P.
Jones Day
QOL Medical, LLC
Ward Paul V.
Wilson James O.
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