Medicine and Health Science Fair Project
Compare natural antacids with chemical antacids


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Project Information
Title: Compare natural antacids with chemical antacids.
Subject: Medicine & Health
Grade level: High School - Grades 10-12
Academic Level: Ordinary
Project Type: Experimental
Cost: Low
Awards: Second Place, Canada Wide Virtual Science Fair ($100)
Affiliation: Canada Wide Virtual Science Fair
Year: 2010
Materials: Various antacid tablets, HCl (hydrochloric acid), pH meter, electric balance, stopwatch.
Description: Measuring the pH of natural antacids, natural mixtures, chemical antacids and measuring the pH of samples with HCl (hydrochloric acid).
Link: www.virtualsciencefair.org...
Background

Antacid

An antacid is a substance which neutralizes stomach acidity and is used to relieve heartburn, indigestion or an upset stomach.

Medical uses: Antacids are available over the counter and are taken by mouth to quickly relieve occasional heartburn, the major symptom of gastroesophageal reflux disease and also indigestion. Treatment with antacids alone is symptomatic and only justified for minor symptoms. Antacids are distinct from acid-reducing drugs like H2-receptor antagonists or proton pump inhibitors and they do not kill the bacteria Helicobacter pylori, which causes most ulcers. Non-particulate antacids (sodium citrate, magnesium trisilicate) increase gastric pH with little or no effect on gastric volume. Sodium citrate should be given within 1 hour of surgery to be the most effective.

Side Effects: Versions with magnesium may cause diarrhea, and brands with calcium or aluminium may cause constipation and rarely, long-term use may cause kidney stones. Long-term use of versions with aluminium may increase the risk for getting osteoporosis.

Source: Wikipedia (All text is available under the terms of the Creative Commons Attribution-ShareAlike License)

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