Dextromethorphan hydrobromide oral dispersible film agent and preparation method thereof
A technology of dextromethorphan hydrobromide and dispersion film, which can be applied in the directions of non-active ingredients medical preparations, active ingredients-containing medical preparations, pharmaceutical formulas, etc., and can solve problems such as bad taste
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Embodiment 1
[0366] Example 1 A kind of dextromethorphan hydrobromide oral dispersible film
[0367] See Tables 21 and 22 for prescriptions.
[0368] Prepared by:
[0369] 1. Dilute 25ml of 1mol / L sodium hydroxide solution to 175ml with purified water, and after mixing evenly, add the prescribed amount of polycridine, the weight / molar ratio of polycridine to sodium hydroxide is 1g : 0.0025mol, stirred for 6 hours;
[0370] 2. Add 8.75ml of ethanol and 2.5g of dextromethorphan hydrobromide to the above suspended solution, stir at room temperature, and react for 12 hours; filter with suction, discard the filtrate, and keep the filter cake;
[0371] 3. Dissolve 2.5 g of dextromethorphan hydrobromide in 175 ml of purified water and stir to dissolve. After dextromethorphan hydrobromide is completely dissolved, add the above filter cake for reaction, stir at room temperature, and react for 10 hours; filter with suction, discard the filtrate, and keep the filter cake;
[0372] 4. Dissolve 2....
Embodiment 2
[0385] Example 2 A kind of dextromethorphan hydrobromide oral dispersible film
[0386] See Tables 21 and 22 for prescriptions.
[0387] Prepared by steps similar to Example 1, the difference is:
[0388] 1. Dilute 50ml of 1mol / L sodium hydroxide solution to 175ml with purified water, the weight / molar ratio of polycridine to sodium hydroxide is 1g:0.005mol, and stir for 4 hours;
[0389] 2. Stir for 6 hours;
[0390] 3. Stir for 8 hours;
[0391] 5. Wash with 32.5ml ethanol and 30ml water in turn;
[0392] 10. Stir to dissolve 4.5 g of Hypromellose E3.
Embodiment 3
[0393] Example 3 A kind of dextromethorphan hydrobromide oral dispersible film
[0394] See Tables 21 and 22 for prescriptions.
[0395] Prepared by:
[0396] 1. Dilute 35ml of 1mol / L sodium hydroxide solution to 175ml with purified water, and after mixing evenly, add the prescribed amount of polycridine, the weight / molar ratio of polycridine to sodium hydroxide is 1g : 0.0025mol, stirred for 10 hours;
[0397] 2. Add 8.75ml of ethanol and 2.5g of dextromethorphan hydrobromide to the above suspended solution, stir at room temperature, and react for 10 hours; filter with suction, discard the filtrate, and keep the filter cake;
[0398] 3. Dissolve 2.5 g of dextromethorphan hydrobromide in 175 ml of purified water and stir to dissolve. After dextromethorphan hydrobromide is completely dissolved, add the above filter cake for reaction, stir at room temperature, and react for 8 hours; filter with suction, discard the filtrate, and keep the filter cake;
[0399] 4. Dissolve 2...
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