antacid


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.

antacid,

any one of several basic substances that counteract stomach acidity (see stomachstomach,
saclike dilation in the gastrointestinal tract between the esophagus and the intestines, forming an organ of digestion. The stomach is present in virtually all vertebrate animals and in many invertebrates.
..... Click the link for more information.
). Antacids are used by physicians to treat hyperchlorhydria, i.e., the excessive production of hydrochloric acid by the parietal cells lining the stomach. Commonly used antacid preparations, most sold without prescription, contain sodium bicarbonate, magnesium hydroxide, or aluminum hydroxide. Some preparations contain substances such as magnesium trisilicate that reduce the formation of gas.

antacid

[′ant′as·əd]
(chemistry)
Any substance that counteracts or neutralizes acidity.

antacid

1. a substance used to neutralize acidity, esp in the stomach
2. having the properties of this substance
References in periodicals archive ?
s O-T-C Nexium 24HR antacid tablets was the category's leading brand, with sales of $70.
Antacid tablet sales hit $169 million for the 12-week period ended September 9, according to IRI, which represents a 3% increase in sales from the same period a year ago.
Rolaids is reportedly an over-the-counter antacid that helps relieve heartburn and acid indigestion.
KEY WORDS: Antacid, Palatability, Cost effectiveness.
Proton pump inhibitors, histamine H2 receptor antagonists, and other antacid medications and the risk of fracture," Calcit Tissue Int, August 2006.
A nested case-control analysis conducted within the study population who used antacids focused on 475 adults who developed pneumonia between Jan.
In its prescription form Tagamet was the most highly prescribed antacid with more than 237 million prescriptions filled out year, followed by Zantac with more than 192 million scripts, Pepcid with 36 million and Axid with about 20 million, according to SmithKline Beecham.
If antacids are needed for more than 3 weeks, a doctor should be consulted.
The chemical action of an antacid causes the pH of the stomach to be raised (becoming more alkaline).
3) If persistent diarrhea or hypermagnesemia develops, an aluminum-dominant antacid can be administered, alternating it with a magnesium-aluminum combination.
The tablet version of Nexium 24HR Antacid, which until last year was available only by prescription, had nearly 9% of the market, IRI said.
PHILADELPHIA -- Antacids diminish the occurrence of throat cancer that is linked to frequent heartburn, a new study has found.