Berberine hydrochloride and malic acid eutectic substance and preparation method, composition and application thereof
A technology of berberine hydrochloride and malic acid, which is applied in the directions of drug combination, organic chemistry method, pharmaceutical formula, etc.
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Embodiment 1
[0053] Preparation method 1 of berberine hydrochloride and malic acid cocrystal:
[0054] According to the table below, take an appropriate amount of berberine hydrochloride and malic acid and put them into a mortar according to the molar ratio of 2:1, add an appropriate amount of organic solvent, and manually grind for an appropriate time. Carry out powder X-ray diffraction analysis to it, its diffraction pattern and figure 1 Consistent, indicating that the obtained sample is a co-crystal of berberine hydrochloride and malic acid.
[0055]
[0056]
[0057] Preparation method 2 of berberine hydrochloride and malic acid cocrystal:
[0058] As shown in the table below, take appropriate amount of berberine hydrochloride and malic acid and put them into a ball mill tank with a molar ratio of 2:1, add an appropriate amount of organic solvent, select an appropriate ball-to-material ratio, set an appropriate speed, and grind for an appropriate time. Carry out powder X-ray di...
Embodiment 2
[0064] Absorption characteristics and plasma concentration characteristics of berberine hydrochloride and malic acid co-crystal in rats:
[0065] Six SD rats were randomly divided into 2 groups, 3 rats in each group, and they were fasted without water for 12 hours before administration. Weigh the body weight of the rat, according to 100mg·kg -1 The berberine hydrochloride dosage was calculated, the berberine hydrochloride and the berberine hydrochloride and malic acid eutectic samples were loaded into the solid dispenser, and the drug powder was directly placed into the stomach of the rat through the oral cavity. 5min, 15min, 30min, 45min, 1h, 1.5h, 2h, 4h, 8h, and 12h after administration, blood was collected from the inner canthus of the eye, placed in a heparinized tube, centrifuged at 4000rpm for 10min at 4°C, and frozen at -40°C In the refrigerator to be tested. Accurately measure 100 μL of plasma, put it into a 1.5ml EP tube, add 10 μL of internal standard carbamazepin...
Embodiment 3
[0074] The preparation method 1 (tablet) of combination pharmaceutical preparation:
[0075] A method for preparing a combination drug tablet, which is characterized in that berberine hydrochloride and malic acid co-crystals are used, and several excipients are used as auxiliary material components for preparing the combination drug tablet, and each tablet is prepared according to a certain ratio For tablet samples containing eutectics in the range of 5-500 mg, Table 5 gives the tablet formula ratio:
[0076] The preparation formula of table 5 berberine hydrochloride and malic acid eutectic combination medicine tablet
[0077]
[0078] The method of preparing berberine hydrochloride and malic acid co-crystals as raw materials into tablet preparations is: mixing several excipients and raw materials uniformly, and directly compressing tablets; or mixing excipients with dry granulation and then mixing with raw materials Press evenly and press into tablets.
[0079] The prepa...
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