Cryptotanshinone skin cutin liposomal preparation and preparing method thereof
A technology of cryptotanshinone and keratin, which is applied in the field of pharmaceutical preparations, can solve the problems of inducing liver drug enzymes, easy decomposition when exposed to light, and poor water solubility, and achieve the effects of improving local bioavailability, improving poor water solubility, and reducing side effects
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[0022] The invention relates to a preparation method of cryptotanshinone skin cutin lipoid. The formula includes the following components in parts by weight: 0.5-7 parts of cryptotanshinone, 30-100 parts of ceramide, 20-125 parts of lecithin, and 10 parts of cholesterol ~200 parts, organic phase 800~5000 parts, water phase 2000~12500 parts. In the formula, cryptotanshinone is the main drug; lecithin and ceramide are used as film-forming materials, wherein lecithin is preferably selected from soybean lecithin, hydrogenated lecithin, egg yolk lecithin or a mixture of two kinds; cholesterol is a film stabilizer, regulating The fluidity of the membrane; the organic phase is selected from absolute ethanol or ether; the ceramide is water-soluble ceramide; the water phase can be selected from phosphate buffered saline or distilled water with different pH values according to the properties of the drug.
[0023] The present invention mainly adopts the organic solvent injection method...
Embodiment 1
[0026] Dissolve 1.5 mg of cryptotanshinone, 0.1 g of soybean lecithin, and 0.025 g of cholesterol in 3 mL of absolute ethanol to obtain an organic phase; dissolve 0.03 g of ceramide in 10 mL of phosphate-buffered saline solution with a pH of 7.4 to obtain an aqueous phase, and place in a magnetic Preheat the stirrer to 50°C; maintain the temperature and maintain the magnetic stirring speed at 600rpm, slowly drop the organic phase into the water phase with a syringe, keep stirring for 3 hours to volatilize the ethanol, and transfer it to a brown glass bottle for storage.
Embodiment 2
[0028] Dissolve 1.5 mg of cryptotanshinone, 0.1 g of soybean lecithin, and 0.025 g of cholesterol in 3 mL of absolute ethanol to obtain an organic phase; dissolve 0.03 g of ceramide in 10 mL of phosphate-buffered saline solution with a pH of 7.4 to obtain an aqueous phase, and place in a magnetic Preheat the stirrer to 50°C; maintain the temperature and maintain the magnetic stirring speed at 600rpm, slowly drop the organic phase into the water phase with a syringe, keep stirring for 3 hours to volatilize the ethanol, and transfer it to a brown glass bottle for storage.
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