Novel oral solid medicinal composition and preparation method thereof
A composition and oral preparation technology, applied in the field of new oral solid pharmaceutical composition and its preparation, can solve the problems of affecting drug efficacy, reducing drug efficacy, and large content of excipients, so as to avoid quality control problems, reduce dosage, reduce small piece heavy effect
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Embodiment 1
[0095] The preparation of embodiment 1 hydrochlorothiazide crystal
[0096] (1) 1kg hydrochlorothiazide is dissolved in acetone to obtain acetone solution whose concentration is 0.1g / ml hydrochlorothiazide;
[0097] (2) Add distilled water dropwise to the acetone solution under stirring at 160r / min until the solution becomes turbid;
[0098] (3) under the ultrasonic field that power is 0.5KW, flow the organic mixed solution of ethanol and ether in the solution gained in step 2, continue the stirring of 25r / min; Wherein the volume ratio of ethanol and ether in the organic mixed solution is 5: 6, The volume ratio of described mixed solution and acetone is 1: 1;
[0099] (4) Continue ultrasonication for 2 minutes, let stand, grow crystals at 16° C. for 2 hours, filter, wash the filter cake with ether, and vacuum-dry to obtain hydrochlorothiazide crystals.
[0100] Such as figure 1 As shown, the characteristic peaks in the X-ray powder diffraction pattern obtained by measuring...
Embodiment 2
[0101] The preparation of embodiment 2 hydrochlorothiazide crystals
[0102] (1) 1kg hydrochlorothiazide is dissolved in acetone to obtain acetone solution whose concentration is 0.2g / ml hydrochlorothiazide;
[0103] (2) Add distilled water dropwise to the acetone solution under stirring at 120r / min until the solution becomes turbid;
[0104] (3) under the ultrasonic field that power is 0.4KW, flow the organic mixed solution of ethanol and ether in the solution gained in step 2, continue the stirring of 20r / min; Wherein the volume ratio of ethanol and ether in the organic mixed solution is 2: 3, The volume ratio of described mixed solution and acetone is 4: 5;
[0105] (4) Continue ultrasonication for 2 minutes, let stand, grow crystals at 12° C. for 1.5 hours, filter, wash the filter cake with ether, and vacuum-dry to obtain hydrochlorothiazide crystals.
[0106] Such as figure 1 As shown, the characteristic peaks in the X-ray powder diffraction pattern obtained by measur...
Embodiment 3
[0107] The preparation of embodiment 3 hydrochlorothiazide crystals
[0108] (1) 1kg hydrochlorothiazide is dissolved in acetone to obtain a solution of acetone with a concentration of 0.08g / ml hydrochlorothiazide;
[0109](2) Add distilled water dropwise to the acetone solution under stirring at 180r / min until the solution becomes turbid;
[0110] (3) under the ultrasonic field that power is 0.6KW, flow the organic mixed solution of ethanol and ether in the solution gained in step 2, continue the stirring of 30r / min; Wherein the volume ratio of ethanol and ether in the organic mixed solution is 7: 6, The volume ratio of described mixed solution and acetone is 8:5;
[0111] (4) Continue ultrasonication for 3 minutes, let stand, grow crystals at 18° C. for 2.5 hours, filter, wash the filter cake with ether, and vacuum-dry to obtain hydrochlorothiazide crystals.
[0112] Such as figure 1 As shown, the characteristic peaks in the X-ray powder diffraction pattern obtained by m...
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