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BaiFan (Alum)---白矾

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Product Description

It is the refined product of mineral Alunite of sulphate , mainly containing potassium aluminium sulfate (KAl(SO4)2*12H2O). The medicinal material can be dug and collected all the year round. After the alunite is dissolved in the water, it is filtered, heated and concentrated, the crystal can be separated out and obtained after being cooled. The raw or calcined form is used for medication.

[Medicinal Properties]: Sour, astringent and cold; relate to the lung, spleen, liver and large intestine meridians.

[Medicinal Efficacies]: Clear away toxin and kill parasites; absorb dampness to relieve itching when externally used; stop bleeding and diarrhea; dispel wind-phlegm when used internally used.

[Clinical Applications]:

  1. Eczema with itching, pyocutaneous disease, acariasis, tinea This medicinal has the property of dry, sour, and astringent, and it is good at absorbing dampness to alleviate itching. It can treat the dampness and ulceration of sore surface or with itching. It can be used alone, or together with Liuhuang, Xionghuang and Bingpian. 

      2. Haematemesis, hematochezia, metrorrhagia and metrostaxis, prolonged diarrhea and dysentery This medicinal has astringent hemostatic action both for internal and external use, and can treat several kinds of hemorrhage syndrome. For epistaxis, it can be used alone by blowing its powder to nose; in treating for fresh blood without end in stool, it can be used with Paojiang; with its function of astringing intestines and stopping diarrhea, it can treat for prolonged diarrhea and dysentery, it can be used in combination with Weihezi and Wubeizi. 

      3. Phlegm syncope, depressive psychosis, mania, epilepsy It is often used in combination with Yujin, such as in the formula Baijin Pill.

      In addition, this medicinal has the function of eliminating dampness and treating jaundice, it is indicated for jaundice due to damp-heat, and other syndrome of hemorrhoids, rectocele and prolapse of uterus.

[Usage and Dosage]: 0.6-1.5g. It is processed into pills or powder. Its amount should be proper for external applications, it can be used to the local area by washing after being dissolved, or its powder can be applied to the local area or mixed with water.

[Precautions]: it is contraindicated for syndrome in those patients with debility and deficiency of the stomach or those without damp-heat and phlegm-fire.

[Side Effects]: Concentrated alum solution may irritate mucous membrane of the skin obviously, taking a large dose for oral use may cause burns of oral cavity, and throat, vomiting, diarrhea, collapse, even death.

白矾为硫酸盐类矿物明矾石经加工提炼制成,主含含水硫酸铝钾[KAl(SO4)2·12H2O]。主产于安徽、浙江、山西、湖北等地。全年均可采挖。将采得的明矾石用水溶解,滤过,滤液加热浓缩,放冷后所得结晶即为白矾。生用或煅用。煅后称枯矾。

       【药性】酸、涩,寒。归肺、脾、肝、大肠经。        【功效】外用解毒杀虫,燥湿止痒;内服止血,止泻,化痰。       
 
【应用】        1.外用治湿疹瘙痒,疮疡疥癣。本品性燥酸涩,而善收湿止痒。尤宜治疮面湿烂或瘙痒者。治痈疽,常配朴硝研末外用,如二仙散(《卫生宝鉴》);《证治准绳》单用白矾或配伍硫黄、乳香等治疗口疮、聤耳、鼻息肉、酒齄鼻。白矾更是治疗痔疮、脱肛、子宫脱垂的常用药,如以白矾、五倍子为主组成的消痔灵注射液。       
 
2.内服治①便血、吐衄、崩漏。本品性涩,能入肝经血分,有收敛止血作用,可用治多种出血证。治衄血不止,以枯矾研末吹鼻(《圣济总录》);治崩漏,配五倍子、地榆同用;治金疮出血,用生矾、煅矾配松香研末,外敷伤处。②久泻久痢。取其涩肠止泻作用,配煨诃子肉为散,粥饮调下治之,如诃黎勒散(《圣惠方》)。③痰厥癫狂痫证。白矾酸苦涌泄而能祛除风痰,又当配郁金为末,薄荷糊丸服,治痰壅心窍癫痫发狂,如白金丸(《医方集解》)。④湿热黄疸。有去湿退黄之功,可与硝石配伍,治女劳疸,如硝石散(《金匮要略》)。       
 
【用法用量】外用适量,研末撒布、调敷或化水洗患处。内服0.6~1.5g,入丸、散服。        【使用注意】体虚胃弱及无湿热痰火者忌服。       
 
【古籍摘要】        1.《神农本草经》:“主寒热泄痢,白沃,阴蚀恶疮,目痛,坚齿骨。”       
 
2.《本草蒙筌》:“禁便泻,塞齿疼,洗脱肛涩肠,敷脓疮收水。”       
 
3.《本草纲目》:“矾石之用有四:吐利风热之痰涎,取其酸苦涌泄也;治诸血痛、脱肛、阴挺、疮疡,取其酸涩而收也;治痰饮、泄痢、崩带、风眼,取其收而燥湿也;治喉痹、痈疽、中蛊、蛇虫伤螫,取其解毒也。”       
 
【现代研究】        1.化学成分:为含水硫酸铝钾[KAl(SO4)2·12H2O],枯矾为脱水白矾。       
 
2.药理作用:白矾能强力凝固蛋白质,临床用又可以消炎、止血、止汗、止泻和用作硬化剂。可广谱抗菌,对多种革兰氏阳性球菌和阴性杆菌、某些厌氧菌、皮肤癣菌、白色念珠菌均有不同程度抑菌作用,对绿脓杆菌、大肠杆菌、金黄色葡萄球菌抑制明显;在体外有明显抗阴道滴虫作用。白矾经尿道灌注有止血作用;还能促进溃疡愈合;净化混浊生水。       
 
3.临床研究:据报道,用白矾或经适当配伍治疗脓疱疮、湿疹、黄水疮、手足癣、顽固性口腔溃疡、肠炎、痢疾、消化道出血、癫痫等多种疾病,疗效满意。近年还报道:应用饱合明矾溶液加钳夹枯痔法(即将饱合明矾溶液1~3ml
注入痔核粘膜下血管团内,约2~3分钟后用血管钳反复钳夹痔核,使其成一薄片),治疗痔疮1097例,术后随访787例,治愈率100%(中华实用中西医结合杂志,1999,24∶2148);治慢性肥厚性鼻炎,将60%明矾注射液注入鼻甲肥厚粘膜下,每一部位0.2~0.3ml,5~6天1次,观察365例,有效率98.36%,(中国中西医结合杂志,1994,2∶75);用2%明矾水溶液高压灭菌后备用,每次300ml,经鼻食管在60~75分钟内滴完,治疗食管静脉曲张出血43例,有效率95.3%(综合临床医学,1994,1∶38)。
 
此外,还能防治稻田性皮炎,用治褥疮、烧烫伤、中耳炎、脚汗症、泌尿系手术出血、子宫脱垂、直肠脱垂、肾结石、高脂血症、病毒性肝炎等。       
 
4.不良反应:明矾浓溶液对皮肤粘膜有明显刺激性,大剂量明矾内服可引起口腔、喉头烧伤,呕吐腹泻,虚脱甚至死亡(中国中药杂志,1989,2∶42)。

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