Application of aristolochic acid in preparation of drugs treating rheumatoid arthritis
A kind of aristolochic acid, rheumatoid technology, applied in the field of medicine, can solve the problem that there is no topical medicine of aristolochic acid
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Embodiment 1
[0047] Take 10,000 grams of Asarum medicinal material, add 30,000 grams of methanol to reflux extraction twice, each time for 3 hours, filter, combine the two filtrates, evaporate the filtrate, recover methanol, dissolve the residue with 1% hydrochloric acid aqueous solution, add 2% sodium carbonate aqueous solution When the pH reached 8.5, an appropriate amount of dichloromethane was added for extraction three times, the aqueous phase was discarded, the dichloromethane extracts were combined, evaporated to dryness, and the dichloromethane was recovered to obtain 0.508 g of aristolochic acid.
Embodiment 2
[0049] Take 2g of Carbomer-971, add appropriate amount of distilled water to soak, stir to make it swell into a uniform paste, then add ethylparaben, add triethanolamine dropwise, and adjust the pH to 7.5; take 5g of aristolochic acid and add the swollen carbomer Add 15.1g of laurocaprazine again, add distilled water to 80g, and stir until transparent to obtain the gel of the present invention.
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