This document discusses antacids, which are bases that neutralize excess stomach acid. It explains that stomach acid helps digest food but too much can harm the stomach lining. Antacids work by reducing or blocking gastric acid secretion. Common antacids include magnesium hydroxide, magnesium carbonate, aluminum hydroxide gel and sodium bicarbonate. Antacids react with hydrochloric acid in the stomach to neutralize it. They are used to treat conditions like heartburn, indigestion and nausea caused by excess acid production.

2. ANTACID Our stomach produce dilute hydrochloric acid
(HCL) helps in digestion to our food without
harming the stomach ,Sometimes the excess of
acid is produced in the stomach which cannot
treat with the dilute hydrochloric acid (HCL)that
will harm us in the stomach, to prevent from
acidity we use the bases called as “Antacid”.
 Antacid reversibly reduce or block the
secretion of acid by gastric cells to reduce
acidity in the stomach.

3. ABOUT ANTACID
Chemical substances which remove the excess
acid and raise the pH to an appropriate level in
stomach are called “Antacid”.
Acid gastric is a very common aliment associated
with digestion and is caused by an excess of
Hydrochloric Acid(HCl) in the gastric juice. The
commonly used Antacids are;
 Magnesium Hydroxide.
 Magnesium Carbonate.
 Magnesium Trisilicate.
 Aluminium Hydroxide gel.
 Sodium Bicarbonate.
 Aluminium Phosphate.

4. COMPONENTS OF ANTACID
 Antacids are weak bases that are used to
neutralize excess stomach acid
 Most antacids are weak inorganic bases
 Common examples include:
CaCO3 (CALCIUM CARBONATE )
NaHCO3 (SODIUM
BICARBONATE )
Al(OH)3 (ALUMINIUM
HYDROXIDE)
Mg(OH) (MAGNESIUM

5. INDICATIONS WHEN WE TAKE ANTACID
 When heart burn is there then we take Antacid
to reduce the heartburn.
 Treatment with antacids alone is symptomatic
and only justified for minor symptoms.
 A typical feeling of restlessness.
 Indigestion.
 Feeling of nausea (wanting to throw up) and
actual vomiting.

6. CAUSES OF EXCESSIVE RELEASE
OF ACIDS IN THE STOMACH
 Alcohol Consumption.
 Eating Certain Foods.
 Smoking.
 Certain Drugs i.e. Aspirin.
 Stress.

7. REACTION OF ANTACID
 Antacids react with HCl in the stomach
 Some common antacid reactions
include:
 CaCO3 + 2 HCl  CaCl2 + H2O +
CO2
 NaHCO3 + HCl  NaCl + H2O +
CO2
 Al(OH)3 + 3 HCl  AlCl3 + 3 H2O
 Mg(OH)2 + 2 HCl  MgCl2 + 2 H2O
 MgO + 2 HCl  MgCl2 + H2O

8. USES OF ANTACID
It bring down the percentage of Acidity
in our Stomach and prevent mucus
lining in the stomach.
It prevent from HEART BURN
It also prevent from the
ULCER(damage to lining of stomach
wall, resulting in loss of tissues and
inflammation).

9. SIDE EFFECT OF ANTACID
 Magnesium Compounds may cause
diarrhea
 Aluminum Compounds may cause
constipation and they also may interfere with
the adsorption of phosphates in the formation of
bones
 Calcium compounds containing may also
increase calcium output in the urine, which
might be associated with kidney stones.
 Sodium : Increased intake of sodium
may lead to heart failure and many renal