Procaterol hydrochloride granules and preparation process thereof
A technology of procaterol hydrochloride and preparation process, applied in the field of procaterol hydrochloride granules and preparation technology thereof, can solve the problems of inability to exert its pharmacological effect, missed treatment opportunity, patient injury, etc., achieve high bioavailability, avoid drug Degradable, easy-to-carry effect
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Embodiment 1
[0023] Example 1 Procaterol hydrochloride 0.0025g, lactose 15g, mannitol 30g, fructose 0.9g, trehalose 0.8g, maltodextrin 3g, micronized silica gel 0.01g, xanthan gum 0.2g, povidone K300.05g.
[0024] The above-mentioned raw and auxiliary materials are dissolved in 400ml of water, sprayed and freeze-dried, the nozzle diameter is 1.5mm, the atomization pressure is 0.2MPa, the initial freezing temperature is -45°C, the vacuum degree is 7Pa, and the low-temperature sublimation is dried for 8 hours.
Embodiment 2
[0025] Example 2 Procaterol hydrochloride 0.0005g, mannitol 35g, trehalose 4g, maltodextrin 10g, micropowder silica gel 0.02g, xanthan gum 0.05g, polyethylene glycol 4000.5g.
[0026] The above-mentioned raw materials and auxiliary materials are dissolved by adding 500ml of water, spray freeze-drying, nozzle diameter of 1.0mm, atomization pressure of 0.3MPa, initial freezing temperature of -30°C, vacuum degree of 9Pa, and low-temperature sublimation drying for 10 hours.
Embodiment 3
[0027] Example 3 Procaterol hydrochloride 0.003g, mannitol 25g, fructose 1.5g, trehalose 1.7g, maltodextrin 1.7g, micropowder silica gel 0.03g, xanthan gum 0.1g, povidone K300.6g.
[0028] The above-mentioned raw and auxiliary materials are dissolved in 250ml of water, sprayed and freeze-dried, the nozzle diameter is 1.0mm, the atomization pressure is 0.5MPa, the initial freezing temperature is -32°C, the vacuum degree is 10Pa, and the low-temperature sublimation is dried for 5 hours.
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