This document discusses different types of chemicals used in medicine. It describes analgesics which relieve pain without causing unconsciousness, antipyretics which reduce fever, antiseptics which destroy disease-causing microorganisms, tranquilizers which treat anxiety and fear, antacids which neutralize stomach acidity, and antibiotics which destroy or inhibit the growth of microorganisms and treat infections. These chemicals are classified and defined according to their uses in treating, curing, preventing, or diagnosing diseases or promoting well-being.

1. CHEMICALS IN MEDICINE
SARANYA H C
KEYI SAHIB TRAINING COLLEGE

2. In pharmacology, a
pharmaceutical drug,
also called a medication
or medicine, is a
chemical substance used
to treat, cure, prevent, or
diagnose a disease or to
promote well-being.

3. CLASSIFICATION OF MEDICINES

4. 1 ANALGESICS
The term Analgesics
encompasses a class
of drugs that are
designed to relieve
pain without causing
the loss of
consciousness.

5. 2 ANTIPYRETICS
The antipyretics are
used to reduce a high
body temperature and
restore it back to
normal. An antipyretic
reduces fever by
lowering a raised body
temperature.

6. 3 ANTISEPTICS
Chemical used in
destroying disease
causing
microorganisms
externally on wounds
or (under medical
supervision) taken
internally to treat
infection.

7. 4 TRANQUILLISERS
A tranquilizer refers to
a drug which is
designed for the
treatment of anxiety,
fear, tension, agitation,
and disturbances of the
mind, specifically to
reduce states of anxiety
and tension.

8. 5 ANTACIDS
An antacid is a
substance which
neutralizes stomach
acidity and is used to
relieve heartburn,
indigestion or an
upset stomach.

9. 6 ANTIBIOTICS
Substance (such as
penicillin) that destroys
or inhibits the growth of
other microorganisms
and is used in the
treatment of external
or internal infections.