The most useful classification of drugs for medicinal chemists is ___________.

1

(a)

on the basis of chemical structure

(b)

on the basis of drug action

(c)

on the basis of molecular targets

(d)

on the basis of pharmacological effect

Salvarsan is arsenic containing drug which was first used for the treatement of .............. .

1

(a)

syphilis

(b)

typhoid

(c)

meningitis

(d)

dysentry

A narrow spectrum antibiotic is active against ........... .

1

(a)

gram positive or gram negative bacteria

(b)

gram negative bacteria only

(c)

single organism or one disease

(d)

both gram positive and gram negative bacteria

The compound that causes general anti-depressant action on the central nervous system belongs to the class of ............ .

1

(a)

analgesics

(b)

tranquillizers 

(c)

narcotic analgestics

(d)

antihistamines.

Equanil is ............ .

1

(a)

artificial sweetener 

(b)

tranquillizer

(c)

antihistamine

(d)

antifertility drug