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    • 10. 发明申请
    • CYANOCOBALAMIN LOW VISCOSITY AQUEOUS FORMULATIONS FOR INTRANASAL DELIVERY
    • 氰钴胺低粘度水性配方
    • US20120190640A1
    • 2012-07-26
    • US13189061
    • 2011-07-22
    • Steven C. QUAYPeter C. AprileZenaida O. GoAnthony P. Sileno
    • Steven C. QUAYPeter C. AprileZenaida O. GoAnthony P. Sileno
    • A61K31/714A61P3/02
    • A61K9/0043A61K9/08A61K31/7056A61K31/714A61K47/10A61K47/12A61K47/186
    • 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.
    • 一种由氰钴胺素和水组成的稳定的药用无汞水溶液,其中所述氰钴胺溶液适合于鼻内给药,其粘度小于约1000cPs,其中所述氰钴胺溶液在鼻内给药时具有氰钴胺素的生物利用度 相对于肌内注射氰钴胺素至少约7%,条件是溶液基本上不含汞和含汞化合物。 本发明还涉及提高脑脊髓液(CSF)中的维生素B12水平的方法,其包括鼻内施用足量的无水银氰钴胺溶液,以增加CSF中维生素B12的平均比例 与血液中的血清(B12 CSF / B12血清×100)相比至至少约1.1,其包括鼻内施用氰钴胺水溶液,其中所述氰钴胺溶液相对于肌内注射的生物利用度为至少7% 氰钴胺素