Amongst the following antihistamines, which are antacids?

1.  Ranitidine

2.  Brompheniramine

3.  Terfenadine

4.  Cimetidine


 

(a, d)

Histamine is a substance that stimulates the secretion of pepsin and hydrochloric acid There are some antacids like cimetidine that were designed to prevent the interaction of histamine with the receptors present in the stomach wall. As a result, less HCI is released and the cause of hyperacidity is controlled/cured.

Ranitidine ie also falls in the category of antihistamine. It is used to cure hyperacidity. Bronplieniramine is an untihistamıne. It is used to treat ____ nose, sneezing. itching and watery eyes caused by an allergy.

Terfenadine, an antihistamine, was used for allergy.