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维生素C又称抗坏血酸,是常用药物之一。它能加速血液凝固,刺激造血功能,促进铁在肠内吸收和血脂下降,增强对感染的抵抗力,参与解毒功能,且有阻止致癌的物质(亚硝胺)生成的作用。除防治坏血病外,对于肝硬化、急性肝炎和砷、汞、铅、苯等慢性中毒时的肝脏损害,以及克山病心源性休克等,均有良好的疗效。有时用大剂量效果更为显著。于是某些人长期大量服用维生素C,认为有病治病,无病防病,有益无害。然而,近年来据国内外研究表明,由于维生素C的用量日趋增大,产生的不良反应也越来越多,故不能掉以轻心。其不良反应介绍如下,以供参考。 1.腹泻:若每日服用维生素C 1～4克,即可促使小肠蠕动加速,以致出现腹痛、腹泻等症状。
Vitamin C, also known as ascorbic acid, is one of the commonly used drugs. It accelerates blood coagulation, stimulates hematopoietic function, promotes iron absorption in the intestine and decreases blood lipids, enhances resistance to infection, participates in detoxification and has the effect of preventing carcinogenic substances (nitrosamines) formation. In addition to preventing scurvy, liver cirrhosis, acute hepatitis and chronic poisoning of arsenic, mercury, lead, benzene and other liver damage, and Keshan’s cardiogenic shock, have a good effect. Sometimes the effect of large doses more pronounced. So some people take large quantities of vitamin C for a long time, that disease treatment, disease prevention and disease prevention, beneficial and harmless. However, in recent years, studies at home and abroad show that due to the increasing use of vitamin C, more and more adverse reactions are caused, it can not be taken lightly. The adverse reactions described below, for reference. 1. Diarrhea: If the daily intake of vitamin C 1 ~ 4 grams, can promote intestinal peristalsis accelerated, resulting in abdominal pain, diarrhea and other symptoms.