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AssigneePar Pharmaceutical, Inc.
InventorsSteven C. Quay, Peter C. Aprile, Zenaida O. Go, Anthony P. Sileno
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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.
A method of administering cyanocobalamin, comprising infusing the nose of a subject in need thereof with an aqueous solution comprising a pharmaceutically effective amount of cyanocobalamin at a concentration of about 0.5% of total weight of solution, wherein the solution has a viscosity of less than 1000 cPs, and wherein the solution has a bioavailability of about 7% or more relative to the bioavailability of an intramuscular injection containing cyanocobalamin at a concentration of 0.1% of the total weight based on a same volume as the solution.
A method of administering cyanocobalamin, comprising infusing the nose of a subject in need thereof with an aqueous solution comprising:
Dependencies are inferred from the claim text.