Slow-release film for treating glaucoma and preparation method thereof
A technology of glaucoma and drug film, which is applied in the direction of medical formula, medical preparations containing active ingredients, drug combination, etc., can solve the problem of no glaucoma sustained-release agent film, etc., to reduce the number of times of taking medicine, the process is short, and it is convenient to use Effect
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specific Embodiment approach 2
[0015] The steps of specific implementation mode 2 are:
[0016] 1. Take 60g of Radix Astragali, 20g of Earthworm, 20g of Radix Paeoniae Rubra, 20g of Safflower, 20g of Poria, 20g of Plantago Seed, 20g of Atractylodes Rhizoma Atractylodes Rhizoma Rhizome, 20g of Rehmanniae Rhizoma Rhizoma Rhizoma Rhizoma Rhizome, mix and pulverize, and extract with 1.8L of water for 3 hours, pour out the extract, Centrifuge at a speed of 30r / min for 10min, and then filter under reduced pressure to obtain 340ml filtered solution as Qingguang'an drug solution.
[0017] 2. Prepare film-forming materials: polyvinyl alcohol PVA, chitosan CS (the ratio is 5 to 1).
[0018] 3. Preparation of sustained-release film agent: soak 6g of film-forming material in appropriate amount of water, heat to dissolve, add 0.5ml of glycerin, 20ml of Qingguang’an drug solution, 3 drops of Tween-80, stir well, dry in the air, and irradiate with ultraviolet light for 30min Disinfect and open the membrane.
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