Quetiapine sustained release tablets and method of preparing the same
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A sustained-release tablet and gentle technology, which is applied in the field of quetiapine sustained-release tablets and its preparation, can solve problems such as unclear absorption sites, and achieve the effects of convenient taking, good sustained-release performance, and reduced dosage
Active Publication Date: 2009-01-21
SHANDONG BESTCOMM PHARMA CO LTD
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April D. Miller et al also reported in Am J Health-SystPharm.2006, 63(1): 1852-1857 that the exact absorption site of quetiapine in the body
Method used
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Embodiment 1
[0030] Quetiapine Fumarate 345g
[0031] Eudragit L 100-55 28g
[0032] Microcrystalline Cellulose 80g
[0033] Lactose 80g
[0034] Magnesium Stearate 6g
[0035] Gastric Opadry 12g
[0036] Preparation method: mix quetiapine fumarate, Eudragit L 100-55, microcrystalline cellulose, and lactose evenly, add hydroalcoholic solution to prepare soft material, granulate, dry, granulate, add magnesium stearate, mix evenly, Compressed tablets, coated with gastric Opadry.
Embodiment 2
[0038] Quetiapine Fumarate 345g
[0039] Eudragit L 100-55 50g
[0040] Eudragit NE 30D 100g
[0041] Microcrystalline Cellulose 50g
[0042] Lactose 50g
[0043] Magnesium Stearate 5g
[0044] Preparation method: mix quetiapine fumarate, Eudragit L 100-55, microcrystalline cellulose, and lactose evenly, prepare soft material with Eudragit NE 30D aqueous dispersion, granulate, dry, granulate, and add magnesium stearate Mix well and press into tablets.
Embodiment 3
[0046] Quetiapine Fumarate 345g
[0047] Eudragit L 100-55 80g
[0048] Microcrystalline Cellulose 50g
[0049] Lactose 50g
[0050] Sodium citrate 50g
[0051] Sodium hydroxide 3g
[0052] Magnesium Stearate 6g
[0053] Preparation method: mix quetiapine fumarate, Eudragit L 100-55, microcrystalline cellulose, and lactose evenly, add 1.5% sodium hydroxide solution to prepare soft material, granulate, dry, granulate, add magnesium stearate Mix well and press into tablets.
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Abstract
The invention belongs to the field of pharmaceutical preparations, more specifically relates to a seroquel sustained release tablet and a preparation method thereof. The sustained release tablet of the invention comprises 5%-50% of sustained release framework material with pH-dependent solubility according to weight percentage, and preferably comprises 15%-35% of the sustained release framework material with the pH-dependent solubility. The seroquel sustained release tablet prepared by the invention runs in the gastrointestinal tract by imitating sustained release and controlled release agents, the in vitro release rate thereof is determined, which proves that the sustained seroquel release tablet can continuously release for 6-24 hours. The seroquel sustained release tablet of the invention reduces dosage of sustained release material based on good sustained release performance and facilitates the administration of patients. The seroquel sustained release tablet of the invention has simple technology and is good for large-scale industrialized production at the same time.
Description
technical field [0001] The invention belongs to the field of pharmaceutical preparations, more specifically, the invention relates to a quetiapine sustained-release tablet and a preparation method thereof. Background technique [0002] Quetiapine (Quetiapine) is an atypical antipsychotic drug, its structure is similar to clozapine, it belongs to dibenzodiazepine derivatives, it not only retains the curative effect characteristics of clozapine but also overcomes its agranulocytosis, Obesity, anticholinergic and other adverse reactions. The drug mainly acts on 5-HT 2 、D 1 、D 2 and D 4 Receptor, it has positive curative effect on schizophrenia, mild side effects and good safety. Compared with traditional antipsychotic drugs, due to the interaction with 5-HT 2 Receptor affinity compared to D 1 and D 2 The receptor is strong, and the 5-HT / DA receptor binding ratio is greater than 2, so it is not only effective for positive symptoms of schizophrenia, but also effective for...
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