Preparation method of azithromycin fine granule
A technology of azithromycin and fine granules, which is applied in the field of preparation of azithromycin fine granules, which can solve problems such as high surface viscosity, adverse effects on the gastrointestinal tract, discomfort, etc., and achieve a sweet taste effect
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Embodiment 1
[0021] Soak 7.5Kg polyacrylic acid resin in 58.3Kg ethanol (concentration (wt.) 95) and stir to dissolve, after 2-3 days to be completely dissolved, filter with 200 mesh screen, then put in 2.5Kg of azithromycin raw material that meets the requirements of the Pharmacopoeia and stir After 1 day, dissolve evenly and carry out spray drying. The inlet temperature is 100-120°C, the outlet temperature is 65-75°C, the nozzle speed is 280-310Hz, and the feeding speed is 6.00-12.00Hz. Collect the microcapsules and pass the microcapsules through Sieve 100 mesh, sieve sucrose 120 mesh, essence sieve 80 mesh. The microcapsules and auxiliary materials are granulated and dried.
Embodiment 2
[0023] Soak 8Kg of polyacrylic acid resin in 60Kg of ethanol (concentration (wt.) 95%) and stir to dissolve, after 2-3 days to be completely dissolved, filter with 200 mesh sieve, then drop into 2.6Kg of azithromycin raw material that meets the requirements of the Pharmacopoeia and stir. Dissolve evenly after 1 day, carry out spray drying, the inlet temperature is 110°C, the outlet temperature is 70°C, the variable speed of the nozzle is 300Hz, and the variable speed of feeding is 10.00Hz, collect the microcapsules, sieve the microcapsules with 200 meshes, and sucrose with 200 meshes , essence sieved with 100 mesh. The microcapsules and auxiliary materials are granulated and dried.
Embodiment 3
[0025] No. 7Kg polyacrylic acid resin-IV is soaked in 56Kg ethanol (concentration (wt.) 95%), stirs and dissolves, and the pH value of solution can be adjusted, treat with 200 mesh sieve screen filter after 2-3 days all dissolvings, then Put in 2.4Kg of azithromycin raw materials that meet the requirements of the Pharmacopoeia and stir, dissolve evenly after 1 day, and spray dry. The capsule is sieved with 200 meshes, the sucrose is sieved with 200 meshes, and the essence is sieved with 200 meshes. The microcapsules and auxiliary materials are granulated and dried.
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