A kind of cocktail method two-color freeze-dried powder and preparation method thereof
A technology for freeze-dried powder and cocktail, which is applied in pharmaceutical formulations, cosmetic preparations, cosmetic preparations, etc., can solve the problems of incomplete effect, increased dosage of excipients, poor vision, etc. The effect of long-term storage and long storage time
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Embodiment 1~3
[0031] See Table 1 for the raw material formula of the cocktail method double-color freeze-dried powder described in Examples 1-3, see Table 2 for the raw material formula of excipient A, and see Table 3 for the raw material formula of excipient B.
[0032] The preparation method of the cocktail method double-color freeze-dried powder described in Examples 1-3 comprises the following steps:
[0033] (1), the raw materials of the upper layer freeze-dried powder and the lower layer freeze-dried powder are respectively prepared into an upper layer freeze-dried powder solution and a lower layer freeze-dried powder solution;
[0034] (2), the lower layer of freeze-dried powder solution is first injected into the packaging bottle, and then the upper layer of freeze-dried powder solution is injected into the packaging bottle for freeze-drying treatment:
[0035] a. Lower the temperature to -44°C and keep it for 10 minutes;
[0036] b. Heat up to -35°C within 20 minutes, and keep at ...
Embodiment 4
[0053] The freeze-dried powders prepared in Examples 1-3 and Comparative Example were placed for 0, 6 months and 12 months respectively, dissolved in water, and the time required for complete dissolution was tested. The test results are shown in Table 4.
[0054] The dissolving time of the lyophilized powder that table 4 embodiment 1~3 and comparative example make
[0055]
[0056] As can be seen from the results in Table 4, the lyophilized powder described in Examples 1 to 3 can still be dissolved in water quickly after being placed for 12 months, while the lyophilized powder described in the comparative example needs to be dissolved in water after being placed for 12 months. It takes a long time to completely dissolve, indicating that the formula of the two-color freeze-dried powder of the present invention is more stable and can be stored for a long time.
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