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Antihistamines

Histamine sti...

Question

Histamine stimulates the secretion of pepsin and hydrochloric acid and antihistamines are used to prevent the action of histamines. Among the following which are antihistamines?

A

Ranitidine

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B

Terfenadine

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C

Brompheniramine

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D

All of these

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Solution

The correct option is D All of these
Antihistamines interfere with the natural action of histamines by competing with histamines for binding sites of receptor where histamine exerts its effect.

Examples of antihistamines include Ranitidine, Cimetidine, Terfenadine (Seldane), Brompheniramine (Dimetapp) etc,.

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Q. Histamine stimulates the secretion of pepsin and hydrochloric acid and antihistamines are used to prevent the action of histamines. Among the following which are antihistamines?

Q. Histamines stimulate secretion of pepsin and hydrochloric acid in the stomach and excess of it can lead to acidity. They are also responsible for nasal congestion associated with common cold and allergic response to pollen.A person having an allergic problem takes ‘Brompheniramine’ which is an antihistamine.
Which of the following is correct about level of secretion of hydrochloric acid in the stomach of the person after consuming ‘Brompheniramine’?

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