有关胃药active ingredient
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发布时间：2024-04-05 01:49
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热心网友
时间：2024-04-27 03:34
更新1:
咁即系 Citric acid只系for俾返个胃少少acidic?? 但点解可以刚刚会的分量neutralize stomach acidic while 又唔会neutralize到citric acid的acidic? 系咪现多选用carbonate的胃药
虽然胃气涨? 但因为冇其他如肚泻的副产品?? thanks
胃药个active ingredient其实应该系magnseium hydroxide又或者aluminium hydroxide... 大多数胃药都离唔开呢两种
因为胃药系要中和胃部既酸性...所以个active ingredient一定系alkaline既野...但有d胃药会加solid acid
咁系唔好俾d alkaline中和晒所有acid
d solid acid可以补充番失去左既acid
令个胃舒服d咁姐.......随左citric acid
仲会加左starch
不过呢d唔系active ingredient..... 有d胃药既ingredient系 magnesium carbonate会出好多gas
如果胃药既ingredient系carbonate
食左之后会有胃气
令胃部唔舒服
co2系by-product黎既 MgCO3 + 2HCl出MgCl2
CO2
同H2O NaHCO3 + HCl出NaCl
CO2
同H2O 含有hydroxide
e.g magnesium hydroxide会有轻泻作用
但aluminium hydroxide就会令人便秘..... 要搞清楚一点就系active ingredient意思系指"有效成分"
通常用化学物质占一粒药丸几多个percentage黎定
所以胃药既active ingredient只系指carbonate/hydroxide
唔系一d中和唔到胃酸既chemical e.g citric acid/starch 2006-11-21 16:39:01 补充： citric acid虽然系weak acid
但你够唔够胆话citric acid 个pH值唔低????无错citric acid系weak acid
咁只系代表佢杀唔到菌
唔代表佢唔系acidic woo 2006-11-21 16:41:44 补充： Na2CO3系碱性Na2CO3 HCl出NaHCO3NaHCO3再同HClreact出NaCl
CO2
同H2O 2006-11-24 11:35:59 补充： 1. 又或者我咁讲
d alkaline溶左落水之后有d会同ca react左先
咁会冇咁多alkaline同胃酸react
你又可能会问: 咁alkaline个份量唔好俾咁多
咁咪唔使用到ca law.其实系唔同人有唔同既胃酸concentration
我地要照顾一d胃酸分泌冇咁多人ga ma
有d人一粒pill都多得济
咁ca都会帮到手.如果胃酸太多
中和之后都应该回复到正常水平
如果有ca仲未react晒
咁咪当vitamin c 咁黎吸收law
ca对人体无害
唔须要border个ca有咩用 2006-11-24 11:36:12 补充： 2. 我谂上面答左你.但其实药厂系唔会将alkaline个concentration较到刚好react晒所有acid ga3. yes..你想胃气涨抑或便秘??答案好明显但因为冇其他如肚泻的副产品??carbonate唔会引起便秘或肚泻
NaCl同MgCl都系salt
会被吸收
你睇番条equation
但放出CO2系副产品定系特登? 放出CO2系副产品 因为胃药
要有alkaline for neutralize 胃酸
but as you know the tablet of the 胃药 is a hard solid and the total surface area is paratively *** all
if the tablet can be broken into very tiny pieces the total surface area is very large and this can make the reaction of nuetralization much faster........ and if the tablet contact water the gasing effect of citric acid and sodium hydrogen carbonate can make this happen....... By the way
citric acid is a weak acid(pare with your stomach fluid)
it cannot enhanced the acidity in this case.......
