Ophthalmic composition and preparation method and application thereof
An ophthalmic composition and ophthalmic technology, applied in the direction of drug combination, medical preparations with non-active ingredients, medical preparations containing active ingredients, etc., can solve the problem of decreased content of active ingredients in preservatives, increased impurities, and no inhibition of bacteria And other issues
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Embodiment 1
[0119] Prepare the voriconazole eye drops of embodiment 1 by prescription in table 1, and its preparation method may further comprise the steps:
[0120] (1) Swell the polyvinyl alcohol of the prescribed amount with an appropriate amount of water for injection, heat and dissolve, and set aside;
[0121] (2) dissolving the glycine of the prescribed amount with an appropriate amount of water for injection for subsequent use to obtain a solution;
[0122] (3) disperse the hydroxypropyl beta cyclodextrin of the prescribed amount with an appropriate amount of water for injection, stir and dissolve to obtain a solution;
[0123] (4) Adjust the pH value of the solution obtained in step (3) to about 5.0 with an appropriate amount of hydrochloric acid, add sodium chloride in the prescribed amount, stir and dissolve, and obtain the solution;
[0124] (5) Add the prescribed amount of voriconazole into the solution in step (4), and continue to stir for 1-3 hours at room temperature until...
Embodiment 2~ Embodiment 4
[0129] The voriconazole eye drops of Examples 2-4 were prepared according to the prescription in Table 1.
[0130] The preparation method refers to Example 1, wherein sulfobutylbeta cyclodextrin is used in step (3) of Example 2, and no sodium chloride is added in step (4) of Example 4.
[0131] Table 1
[0132] Component Example 1 Example 2 Example 3 Example 4 Voriconazole 0.50g 1.00g 1.00g 2.00g Hydroxypropyl Beta Cyclodextrin 10g — 20g 25g sulfobutyl beta cyclodextrin — 20g — — polyvinyl alcohol 0.3g 0.6g 0.6g 1.0g Glycine 0.05g 0.1g 0.1g 0.3g hydrochloric acid Appropriate amount Appropriate amount Appropriate amount Appropriate amount Sodium chloride 0.45g 0.10g 0.10g — Add water for injection to 100g 100g 100g 100g
Embodiment 5~ Embodiment 8
[0134] The voriconazole eye drops of Examples 5-8 were prepared according to the prescription in Table 2.
[0135] The preparation method refers to Example 1, wherein step (2) and step (7) are omitted, and sulfobutylbeta cyclodextrin is used in step (3) of Example 6, step (4) of Example 8 Sodium chloride was not added.
[0136] Table 2
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