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小灵丹用于治疗腹痛及貧血等病症。此药如制造不純,混有氧化砷等杂質,則毒性是很强的,因为此种药品是用雄黄为主要的药料。在古代的医药家們对雄黄的大毒小毒,是一个争論的問題。虽然如此在古今的医方中仍經常的应用着雄黄。医药家們对雄黄的質量非常重視,因其毒性是和質量的好坏有很大的关系,純潔的二硫化砷难溶于水,内服后不易被人体吸收,故毒性不太显著。但如含有砒(信)石或經火而部分的生成三氧化砷(砒霜)时,毒性就大了,这一点是很重要的。供药用的,要选择色深鲜明的上等雄黄。
Xiao Ling Dan is used to treat abdominal pain and anemia. If the drug is impure and mixed with arsenic and other impurities, the toxicity is very strong, because the drug is realgar as the main drug. The poisoning of realgars by ancient pharmacists is a controversial issue. However, the use of realgar is still frequently used in ancient and modern medicine. Pharmacists attach great importance to the quality of realgar, because its toxicity is very much related to quality. Pure arsenic disulfide is hardly soluble in water, and it is not easy to be absorbed by the body after oral administration, so the toxicity is not significant. However, if arsenic trioxide (arsenic trioxide) is generated in part by the presence of 砒(信) 石 or by fire, the toxicity is large, which is very important. For medicinal purposes, select the finest realgar with deep color.