Levodropropizine-guaifenesin capsule and preparation method thereof
A technology of levoropropazine and guaiacol glyceryl ether, which is applied in the field of levorfeetol capsules and preparation thereof, can solve the problems of many auxiliary materials, complicated operation steps, unstable mixing and the like, and achieves production cost saving and good quality Dissolution, the effect of simple preparation process
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Embodiment 1
[0028] Embodiment 1: experimental research on the compatibility of raw materials and auxiliary materials
[0029] Referring to the requirements of the "Basic Technical Guidelines for the Research of Chemical Drug Preparations", separate raw materials, excipients, and mixed powders of raw materials and auxiliary materials were taken, and the influencing factors (light, high temperature, etc.) test.
[0030] Illumination test: Expose the raw materials, excipients, and mixed powders of raw and excipient materials in various ratios to the light of 4500±500Lx for 10 days, take samples, and detect the appearance properties and related substances.
[0031] High temperature test: the raw materials, excipients, and mixed powders of raw and excipient materials in different proportions are set out in two forms of weighing bottles (without lids) and lids respectively, and placed at a high temperature of 60°C for 10 days, sampling, and inspection of appearance properties and related subst...
Embodiment 2-21
[0044] Example 2-21 Prescription and preparation method of levoguaicol capsules
Embodiment 2
[0045] Table 1 Example 2-6 Levoguaiacol Capsules Prescription
[0046]
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