Cefixime submicro-emulsion solid preparation and novel application thereof
A technology of cefixime and solid preparations, which is applied in the field of medicine, can solve the problems of low dissolution rate and poor stability, and achieve the effects of increasing solubility, low cost and simple production process
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Embodiment 1
[0028] The preparation of embodiment 1 cefixime submicron emulsion particles
[0029] Add 160.7g of soybean lecithin, 89.3g of poloxamer 188 and 80g of sodium deoxycholate into 2500ml of water for injection, then add 100g of cefixime and mix evenly, heat and stir in a water bath at 86°C until it melts, and use a tissue masher Shearing and stirring for 20min, rotating speed 12000r / min, to obtain the primary emulsion, and then emulsifying 5 times through a high-pressure homogenizer cycle to obtain an emulsion, then freeze-drying in a large plate, pulverizing, and obtaining 396.6g of submicron emulsion particles of cefixime, yield 92.2%.
Embodiment 2
[0030] The preparation of embodiment 2 cefixime submicron emulsion particles
[0031] Add 642.9g of soybean lecithin, 357.1g of poloxamer 188 and 500g of sodium deoxycholate into 9000ml of water for injection, then add 100g of cefixime and mix evenly, heat and stir in a 75°C water bath until it melts, and use a tissue masher Shearing and stirring for 15 minutes, rotating speed 13000r / min, to obtain the primary emulsion, and then cyclic emulsification by a high-pressure homogenizer for 5 times to obtain an emulsion, and then spray drying to obtain 1467g of submicron emulsion particles of cefixime, with a yield of 91.7%.
Embodiment 3
[0032] The preparation of embodiment 3 cefixime tablets
[0033] The 44.2g cefixime submicroemulsion granules prepared in Example 1, 56g pregelatinized starch, 70g lactose and 9g low-substituted hydroxypropyl cellulose were respectively passed through an 80 mesh sieve, then mixed uniformly, and 8% povidone K3070% was added 30ml of ethanol solution is used to make soft material, granulated with 20 mesh sieve, dried at 55°C, granulated with 20 mesh sieve, then added with 1.8g of magnesium stearate, mixed evenly, and compressed into tablets to obtain cefixime tablets.
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