Drug
nomeniclature: Any drug may have name in all there of the following classes:
a)
Code name.
b)
Chemical name.
c)
Generic/non-proprietary/offical/approvalname.
d)
Trade/proprietary/commertial/brand
name.
[A]Code
name:Is the first name that is given to a drug by
the pharmaceutical manufacturer. After the synthesis of a lot of chemical
compounds,some code names are given before screening its role in physiological
processes done in the laboratory.It may be an abbreviation,a numerical,or
combination of both.
[B]Chemical
name:
1)
Describes the
chemical structure of drug.
2)
Quite long & difficulty
to remember.
3)
Not suitable for
routine usages.
Advantages:Describes
the chemical structure of drug.
Disadvantages:
1)
Quite long &
difficult to remember.
2)
Not suitable for
routine usages.
Ex:3,4-dihydroxy-phenyl-ethyl
amine.
[C]Generic
name:are chosen
by official agencies
1)
Short,easy to
pronounce.
2)
Useful primarily
to health practitioners.
3)
Reflects
chemical,pharmacological or other characteristics.
4)
Free of conflicts
with other drug names.
Advantages:
1)
Short easy to
pronounce.
2)
Free of conflicts
with other drug names.
3)
Pharmacist can
supply whatever the storage.
Disadvantages:
1)
Pharmacists can
substitute a preparation that is equivalent to the drug.
2)
Patient can
receive a preparation of inferior quality or of uncertain bioavailability.
Ex:Aspirin,Penicillin,Epinephrin.
[D]Trade
name:
1)
It refers to
particular company.
2)
Shorter,easier to
remember & Write.
3)
Sometimes drugs
of different classes have closely similar names & cause confusion.
Advantages:
1)
Shorter,simple,easier
to remember & write.
2)
The best can be
prescribed among different preparation.
3)
The use of
propriotory name reduces the problem of quality.
Disadvantages:
1)
Sometimes drugs
of different classes have closely similar names & cause confusion.
2)
It differs from
country to country.
Ex:Teracycline
hydrochloride, Teracycline gaco.
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