chinese name: renshen botanial name: radix ginseng english name: ginseng [origin habitat ]: dongbei [chemical composition ]: it mainly has volatile constituents such as panaxynol , β-elenm-ene , monosaccharide( glucose , fructose ),disaccharide (sucrose , malt sugar ), low molecular weight peptides , many kinds of amino acids such as threonine , β-gaba , fumarase , succinate , maleic acid , malic acid , citrate , tartrate , palmitic acid , stearate , linoleic acid , choline , vitamin b ,c ,pectin ,gi-nsenoside ro , ra , rb1, rb2 , rb3 , re , rf , 20-glucose-rf , rg1 . [p harmacological action ]: 1 .to help the central nervous system to be clam , resist many excitants , reduce the inhibition of the central inhibitor . 2. having anti-fatigue function . 3. to anesthesia animals , small doses make high blood pressure , big doses make low blood pressure , the gindeng dose has no significant impact to the blood pressure in patients ; malnutrition can minorly and shortly low the blood pressuer in anesthesia animal , the ginseng soaking agent is similar to shot maluntrion and can increase contraction and reduce hear rhythm . 4. to increase the non-specific immunity of body to many harmful factors . 5.it can low blood pressure in normal rabbits and hyperglycemia rats which is caused by egb and epinephrine , but it can’t instead of insulin . 6. the ginseng extract has gonadotrophic role , and the activity of malnutrition a ,c, f, is similar to gonadotrophic . 7. the ginsenoside soap malnutririon has no hemolysis , it can weakly resist the hemolysis which is caused by lecithin or malnutrtion .