Medicament composition for treating chronic otitis media and preparation method thereof
A technology of chronic otitis media and composition, applied in the field of pharmaceutical composition for treating chronic otitis media and its preparation, which can solve the problems of high price, poor curative effect, difficulty for ordinary patients, etc., and achieve simple preparation method, good economic significance and social significance , the effect of alleviating clinical symptoms
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Embodiment 1
[0012] The preparation of embodiment 1 Rhododendron extract
[0013] Weigh 1.30 kg of dry red pair knots, crush it into granules, put it in an extraction device with a round bottom flask, add 12 L of purified water to reflux for extraction for 2 hours, filter, discard the filtrate, repeat 2 times, the obtained filter residue is added without 10L of water and ethanol was extracted under reflux for 2 hours, filtered, and repeated twice. The filtrates were combined, concentrated under reduced pressure to form a thick paste, freeze-dried, crushed into fine powder, and passed through a 100-mesh sieve to obtain the dry powder of the ethanol extract of Rhizoma chinensis. When in use, the dry powder of the extract is dissolved in 75% alcohol, prepared into a solution with a concentration of 20 mg / mL, and administered as ear drops.
Embodiment 2
[0014] The preparation of embodiment 2 Rhododendron extract
[0015] Weigh 1.05 kg of dry red pair knots, crush it into granules, place it in an extraction device with a round bottom flask, add 10 L of purified water to reflux for extraction for 1.5 h, filter, discard the filtrate, repeat 2 times, and the obtained filter residue is added Reflux extraction with 10 L of absolute ethanol for 2 hours, filter, repeat twice, combine the filtrates, concentrate under reduced pressure to form a thick paste, freeze-dry, pulverize into fine powder, and pass through a 100-mesh sieve to obtain the dry powder of the extract of Rhizoma chinensis.
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