Method for improving the anti-aging performance of film-controlled sustained-release pellets coated with aqueous dispersion
A technology of sustained-release pellets and dispersions, which can be used in pharmaceutical formulations, medical preparations of inactive ingredients, and bulk delivery, etc., and can solve problems such as decreased release performance.
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Embodiment 1
[0037] The metoprolol tartrate slow-release pellet capsule of embodiment 1 common ball core
[0038] 1. Prescription
[0039] 1. Pill core prescription (1000 capsules)
[0040]
[0041] 2. Prescription of sustained-release film coating solution
[0042]
[0043] 3. No. 0 ordinary stomach-soluble gelatin capsule shell 1000 capsules
[0044] Second, the preparation process:
[0045] 1. Ball core preparation process:
[0046] (1) take by weighing metoprolol tartrate, microcrystalline cellulose PH101 of recipe quantity, put in wet granulator and mix homogeneously;
[0047] (2) make soft material with 1% sodium carboxymethylcellulose 10% ethanol solution;
[0048] (3) Extrude on the extruder, the screen aperture is 1.0mm, and the extrusion speed is 20-30rpm;
[0049] (4) spheronization, the spheronization speed is 900~1000rpm, drying in the fluidized bed;
[0050] (5) Sieve, get the ball core between 16-30 mesh.
[0051] 2. Preparation process of sustained-release fil...
Embodiment 2
[0074] Example 2 Containing low-substituted hydroxypropyl cellulose as swelling material of metoprolol tartrate sustained-release pellet capsules
[0075] 1. Prescription
[0076] 1. Pill core prescription (1000 capsules)
[0077]
[0078] 2. Prescription of sustained-release film coating solution and capsule shell: same as in Example 1
[0079] 2. Preparation process
[0080] 1. Ball core preparation process:
[0081] The prescribed amount of metoprolol tartrate, microcrystalline cellulose PH101, and low-substituted hydroxypropyl cellulose were weighed, and other operations were the same as in Example 1.
[0082] 2. Preparation process of sustained-release film coating solution: same as in Example 1
[0083] 3. Coating (sustained release film):
[0084] The ball core is placed in the fluidized bed for coating, and the weight gain of the coating film is controlled. For the ball core with a low-substituted hydroxypropyl cellulose content of 4.9%, the coating weight gain...
Embodiment 3
[0098] Example 3 Containing sodium carboxymethyl starch as expansion material of metoprolol tartrate sustained-release pellet capsules
[0099] 1. Prescription
[0100] 1. Pill core prescription (1000 capsules)
[0101]
[0102] 2. Prescription of sustained-release film coating solution and capsule shell: same as in Example 1
[0103] 2. Preparation process
[0104] 1. Ball core preparation process:
[0105] Take by weighing metoprolol tartrate, microcrystalline cellulose PH101, sodium carboxymethyl starch of recipe quantity, other operations are with embodiment 1.
[0106] 2. Preparation process of sustained-release film coating solution: same as in Example 1
[0107] 3. Coating (sustained release film):
[0108] The ball core is placed in the fluidized bed coating, and the weight gain of the coating film is controlled. The ball core with a sodium carboxymethyl starch content of 4.9%, the coating weight gain of 11.5%, and the ball core with a sodium carboxymethyl star...
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