What are the following substances ? Give one example of each. (3 marks)
(iii) Broad spectrum antibiotics
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(i) Antihistamines : Antihistamines are amines which are used as drugs to control the allergy
effects produced by histamines.
Example : Terfenadine.
(ii) Tranquilizers : Tranquilizers are a class of chemical compounds used for the treatment of
stress, and mild or even severe mental disease.
Example : Equanil.
(iii) Broad spectrum antibiotics : Antibiotics which kill or inhibit a wide range of Gram-positive
and Gram-negative bacteria are said to be broad spectrum antibiotics.
Example : Chloroamphenicol.