Nasal pharmaceutical composition adopting cyclodextrin to include methylprednisolone aceponate
A technology of methylprednisolone acetin and composition, which is applied in the field of nasal pharmaceutical composition, can solve the problems of poor stability, affecting compliance, and undisclosed issues, and achieve the effects of stable content, good stability, and good water solubility
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Embodiment 1
[0049] Dissolve 2 g of 3-hydroxypropyl β-cyclodextrin in 15 ml of 95% ethanol at room temperature, add 0.2 g of methylprednisolone acetate, stir to dissolve, stir for another 30 minutes, filter through a microporous membrane (220 nm), add 8 ml of Water for injection, stirred for 5 minutes, concentrated under reduced pressure, and evaporated to remove ethanol to obtain an aqueous solution of methylprednisolone acetone / 3-hydroxypropyl β-cyclodextrin inclusion complex, which is set aside.
Embodiment 2
[0051] Dissolve 2g of 2-hydroxypropyl-β-cyclodextrin in 20ml of acetone at 40±2°C, add 0.5g of methylprednisolone acetone, stir to dissolve, stir for another 30 minutes, filter through a microporous membrane (220nm), Add 3mL of water for injection, stir for 5 minutes, concentrate under reduced pressure, add 4ml of water for injection twice during the concentration process, remove acetone, and obtain dexamethasone acetate / 2-hydroxypropyl-β-cyclodextrin inclusion complex Aqueous solution, spare.
Embodiment 3
[0053] Dissolve 7 g of 2-hydroxyethyl-β-cyclodextrin in 20 ml of absolute ethanol at room temperature, add 0.5 g of methylprednisolone acetate, stir to dissolve, stir for another 30 minutes, filter through a microporous membrane (220 nm), and stir Concentrate under reduced pressure for 5 minutes, add 3.5ml of water for injection three times during the concentration process, and evaporate ethanol to obtain methylprednisolone acetone / 2-hydroxyethyl-β-cyclodextrin inclusion aqueous solution, which is set aside.
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