why is an antacid table takes and where where surface from acidity
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Explanation:
Antacid Components
Sodium bicarbonate [NaHCO3] – Sodium bicarbonate is a weak, short-acting antacid. While generally a safe household remedy, its high sodium content is a disadvantage.
Unlikely to be recommended by doctors, “bicarb” or “baking soda” is still a common component of many patent medicines. Bicarbonate has an effervescent property that explains the commercial survival of antacid/pain-killer combinations such as Alka-Seltzer™ and Bromo-Seltzer™. Bicarbonate reacts with stomach hydrochloric acid to release carbon dioxide gas (CO2) that is quickly absorbed, but sometimes elicits a satisfying belch.
An imbalance of the body’s normal pH level (systemic alkalosis) can result from overuse of bicarbonate. Those who require sodium restriction for high blood pressure or heart disease should avoid bicarbonate.
Magnesium Hydroxide [Mg(OH)2] – Magnesium hydroxide is best known as milk of magnesia. Like magnesium citrate or magnesium sulfate, it is an effective laxative. Were it not for its tendency to cause diarrhea, magnesium hydroxide would be the most ideal antacid. To counter the diarrhea effect, most manufacturers add aluminum hydroxide, which is constipating. The combination substantially raises the price, and the addition of the less-effective aluminum hydroxide reduces the antacid benefit.
Magnesium hydroxide is not absorbed by the intestine. However, its interaction with stomach acid produces magnesium chloride that can be absorbed. Magnesium has many functions in human cells, including the heart, and may have harmful effects if levels in the blood rise. This is not a problem for a person with healthy kidneys, but magnesium should be avoided if renal failure is present.
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