Explain antipyretics and analgesics, and give one example of each.
(i) The chemical substances which are used to lower the temperature of the body in a high fever are called antipyretics. Example: Aspirin, paracetamol and plenacetin.
(ii) The chemical substances which are used to relieve pains are called analgesics. Example: Aspirin,
novalgin.
Define the following and given one example of each:
(i) Anti-histamines
(ii) Disinfectants
(iii) Antacids.
Why is it essential to test the patients for “allergy to penicillin”, before it is administered?
Describe the following with example in each case:
(i) Antioxidants.
(ii) Biodegradable detergents.
Why should aspirin cannot be taken on an empty stomach? What does it contain chemically? Draw its structure.
How do antipyretic and analgesic compounds help in cases of common sickness ? Give an example for each.
