Freeze dried preparation of diammonium glycyrrhizinate and its preparation
A technology of diammonium glycyrrhizinate and freeze-dried preparations, applied in freeze-dried delivery, antiviral agents, pharmaceutical formulations, etc., can solve the problems of unfavorable preservation and transportation of injections, affecting the quality and curative effect of injections, and turbid solutions, and achieves a satisfactory solution. Conducive to large-scale production, rapid and sufficient dissolution, and stable performance
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Embodiment 1
[0030] Take an appropriate amount of diammonium glycyrrhizinate (manufactured by Tianjin Zifu Pharmaceutical Technology Development Co., Ltd.) and appropriate amount of mannitol (produced by Shandong Jiejing Group), add appropriate amount of water for injection, stir to make it completely dissolve, add sodium hydroxide solution to adjust the pH value of the solution To about 8.4, a solution containing 75 mg of diammonium glycyrrhizinate and 100 mg of mannitol per milliliter was obtained. Activated carbon was added according to the dosage of 0.05% (g / ml), stirred at 20°C for 50 minutes, decarbonized and filtered, and the resulting filtrate was sterilized by fine filtration with a 0.22 μm microporous membrane. Under aseptic conditions, the resulting solution is placed in a sterile vial, freeze-dried in a freeze dryer for about 25 hours, and aseptically sealed to obtain the diammonium glycyrrhizinate freeze-dried powder preparation A of the present invention.
Embodiment 2~4
[0032] Take appropriate amount of diammonium glycyrrhizinate (manufactured by Tianjin Zifu Pharmaceutical Technology Development Co., Ltd.) and appropriate amount of mannitol (produced by Shandong Jiejing Group), add appropriate amount of water for injection, stir to make it completely dissolve, add sodium hydroxide solution to adjust the pH of the solution Value to about 6.8, obtain every milliliter containing diammonium glycyrrhizinate 75mg and mannitol 150mg solution three parts. According to the amount of 1%, 2%, 2.5% (g / ml), add activated carbon respectively, stir at 20°C, 23°C, and 25°C for 50, 45, and 40 minutes respectively, decarbonize and filter, and filter the obtained filtrate through a 0.22 μm microporous filter. Sterilize by membrane fine filtration. Under aseptic conditions, the gained solution is put in sterile vials, put in a lyophilizer and freeze-dry according to the method of Example 8, and aseptically seal to obtain the diammonium glycyrrhizinate freeze-dr...
Embodiment 5
[0034] Take an appropriate amount of diammonium glycyrrhizinate and lactose (imported), add appropriate amount of water for injection, stir to dissolve completely, add ammonia solution to adjust the pH value of the solution to about 7.45, and obtain a solution containing 75 mg of diammonium glycyrrhizinate and 75 mg of lactose per ml. Add activated carbon according to the dosage of 1% (g / ml), stir at 30° C. for 30 minutes, decarbonize and filter, and the resulting filtrate is sterilized by fine filtration with a 0.22 μm microporous membrane. Under aseptic conditions, the resulting solution is placed in a sterile vial, put in a lyophilizer and freeze-dried according to the method of Example 8, and then aseptically sealed to obtain the diammonium glycyrrhizinate lyophilized powder preparation E of the present invention.
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