Carbomer gel and preparation method thereof
A carbomer gel and formulation technology, which is applied in the direction of pharmaceutical formulations, medical preparations of non-active ingredients, drug delivery, etc., can solve the problem of short residence time at the administration site, unhygienic and inconvenient medication, and poor drug absorption effect, etc. problem, achieve the effect of avoiding secondary cross-infection, rapid action, and fast drug release
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Embodiment 1
[0018] 1. Weigh 40g of carbomer, add 500g of water for injection to soak and swell, and let stand for 12h. While stirring, 50 g of triethanolamine solution was added to adjust the pH to 7.5 to form a transparent hydrogel.
[0019] 2. Weigh 300 g of glycerin, 0.1 g of disodium edetate, and 5 g of benzyl alcohol into the transparent hydrogel for emulsification and stirring for 1 hour.
[0020] 3. Add 104.9g of water for injection and continue stirring for 20 minutes to make the solution uniform.
[0021] 4. Sampling is carried out for intermediate inspection, and filling is carried out in a 10,000-level environment after passing the test.
[0022] 5. Packing and sealing after filling.
[0023] 6. Carry out microwave sterilization and packaging after bagging.
Embodiment 2
[0025] 1. Weigh 45g of carbomer, add 500g of water for injection to soak and swell, and let stand for 12 hours. While stirring, 45 g of ethylenediamine solution was added to adjust the pH to 7.0 to form a transparent hydrogel.
[0026] 2. Weigh 300 g of glycerol, 0.1 g of disodium edetate, and 5 g of benzoic acid into the transparent hydrogel for emulsification and stirring for 1 hour.
[0027] 3. Add 104.9g of water for injection and continue stirring for 20 minutes to make the solution uniform.
[0028] 4. Sampling is carried out for intermediate inspection, and filling is carried out in a 10,000-level environment after passing the test.
[0029] 5. Packing and sealing after filling.
[0030] 6. Carry out microwave sterilization and packaging after bagging.
Embodiment 3
[0032] 1. Weigh 50g of carbomer, add 500g of water for injection to soak and swell, and let stand for 12h. While stirring, 40 g of sodium hydroxide solution was added to adjust the pH to 6.5 to form a transparent hydrogel.
[0033] 2. Weigh 300g of glycerin, 0.1g of sodium sulfite, and 8g of sodium benzoate into the transparent hydrogel for emulsification and stirring for 1 hour.
[0034] 3. Add 101.9g of water for injection and continue to stir for 20 minutes to make the solution uniform.
[0035] 4. Sampling is carried out for intermediate inspection, and filling is carried out in a 10,000-level environment after passing the test.
[0036] 5. Packing and sealing after filling.
[0037] 6. Carry out microwave sterilization and packaging after bagging.
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