Gel for infantile hemangioma and preparation method of gel
A technology for infant hemangioma and gel, which is applied in the directions of medical preparations with non-active ingredients, medical preparations containing active ingredients, and anti-tumor drugs, which can solve the problems of less research on infant hemangioma.
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Embodiment 1
[0021] The preparation of amphiphilic polymer NVP-maleic acid Guerbet alcohol monoester copolymer is carried out according to the following steps:
[0022] (1) Mix 15g of maleic anhydride and 60mL of 2-octyl-dodecane Guerbet alcohol, stir magnetically at 70°C, and freeze the product at 0°C after 6 hours of reaction. After solidification, use methanol and water according to Mixed solution 250mL with a volume ratio of 2:8, wash the reactant, remove excess unreacted maleic anhydride, dry to obtain Guerbet dodecyl monoester maleate;
[0023] (2) Take 0.2g of initiator lauroyl peroxide, 8g of N-vinylpyrrolidone and 2g of Guerbet dodecyl maleate monoester obtained in step (1), add 170mL of n-heptane, and protect it under 80 ℃, mechanical stirring, the white precipitate;
[0024] (3) Wash the white precipitate obtained in step (2) with 250 mL of n-heptane at 70°C for 4 times, filter it with suction, and dry it at room temperature for 36 hours to obtain the amphiphilic polymer NVP-Gu...
Embodiment 2
[0026] A preparation method for infantile hemangioma gel, according to the following steps:
[0027] (1) 5g of timolol maleate and 5g of propranolol were dissolved in 300mL of purified water to obtain a mixed solution;
[0028] (2) Add 0.1 g of NVP-Maleic acid Guerbet alcohol monoester copolymer obtained in Example 1, 10 g of sodium lauryl sulfate and 20 g of glycerin into 200 mL of purified water, heat to 85°C and stir for 2 hours , then cooled to room temperature, adding preservative ethylparaben 1g, to obtain a mixed solution;
[0029] (3) At 85°C, heat 20g of vaseline, 30g of liquid paraffin, and 10g of glyceryl monostearate until molten, and stir evenly to obtain an oil phase;
[0030] (4) Mix the mixed solution obtained in step (1) and step (2) together and stir well, slowly add the oil phase obtained in step (3) under constant stirring, then continue stirring until uniform, cool to room temperature to obtain a gel for infantile hemangioma.
[0031] Implementation col...
Embodiment 5
[0044] A preparation method for infantile hemangioma gel, according to the following steps:
[0045] (1) 5g of timolol maleate and 5g of propranolol were dissolved in 300mL of purified water to obtain a mixed solution;
[0046] (2) Add 10 g of sodium lauryl sulfate and 20 g of glycerin to 200 mL of purified water, heat to 85°C and stir for 2 hours, then cool to room temperature, add 1 g of preservative ethylparaben to obtain a mixed solution;
[0047] (3) At 85°C, heat 20g of vaseline, 30g of liquid paraffin, and 10g of glyceryl monostearate until molten, and stir evenly to obtain an oil phase;
[0048] (4) Mix the mixed solution obtained in step (1) and step (2) together and stir well, slowly add the oil phase obtained in step (3) under constant stirring, then continue stirring until uniform, cool to room temperature to obtain drug gel.
[0049] Implementation column 6
[0050] A preparation method for infantile hemangioma gel, according to the following steps:
[0051] (...
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