Question

All antihistamines inhibit the action of the compound histamine which causes inflammation in the body. This drug is classified ___.

• A. on the basis of pharmacological effect
• B. on the basis of drug action
• C. on the basis of chemical structure
• D. on the basis of molecular targets

Answer 1

The correct option is B on the basis of drug action

1) Antihistamine is classified on the basis of drug action.

2) It reduces the effect of histamine which causes inflammation.

3) Antihistamines are also used to relieve or prevent the symptoms of hay fever and other types of allergy. They work by preventing the effects of a substance called histamine, which is produced by the body. Histamine can cause itching, sneezing, runny nose, and watery eyes.