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antacid |
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antacid /ant·ac·id/ (ant-as´id) counteracting acidity; an agent that so acts.
Antacid A substance that counteracts or neutralizes acidity, usually of the stomach. Antacids have a rapid onset of action compared to histamine H-2 receptor blockers and proton pump inhibitors, but they have a short duration of action and require frequent dosing. Mentioned in: Proton Pump Inhibitors antacid [antas′id] Etymology: Gk, anti, against, acidus, sour 1 opposing acidity. 2 a drug or dietary substance that buffers, neutralizes, or absorbs hydrochloric acid in the stomach. Nonsystemic antacids containing aluminum and calcium are constipating; those containing magnesium have a laxative effect. Systemic antacids such as sodium bicarbonate are rarely used. antacid, n a substance that can counteract or neutralize acidity in the stomach. antacid 1. counteracting acidity. 2. an agent that counteracts acidity. Substances that act as antacids include sodium bicarbonate, aluminum hydroxide gel, magnesium hydroxide, magnesium trisilicate, magnesium oxide and calcium carbonate. They are often used in humans in the treatment of peptic ulcer. antacid Pharmacology A basic agent that neutralizes acid in the gastric lumen; the final pH achieved is usually a function of the amount of antacid administered GI effects Antipeptic, ↑ in acid secretion, ↑ GI motility, ↑ mucus
secretion; antacids vary in absorption–eg, NaHCO3 and sodium citrate and are completely absorbed, which may result in metabolic acidosis How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The drug company Janssen-Eisai, which makes the antacid Aciphex, funded part of the study. Zeke hates him so much that he spikes the old man's antacid with a hit of Ecstasy. Or it can be a shock that makes me reach for the antacid and try to figure out Plan B just to break even. |
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