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प्रश्न
What are the functions performed by histamine in the body?
उत्तर
Histamine is a potent vasodilator. It contracts muscles in the gut and bronchi. It relaxes some other muscles e.g. in the walls of blood vessels. Histamine is also responsible for congestion in the nose associated with common cold and allergies. Also, histamine stimulates the release of pepsin and hydrochloric acid in the stomach.
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संबंधित प्रश्न
Amongst the following antihistamines, which are antacids?
(i) Ranitidine
(ii) Brompheniramine
(iii) Terfenadine
(iv) Cimetidine
Both antacids and antiallergic drugs are antihistamines but they cannot replace each other. Explain why?
Assertion: Penicillin (G) is an antihistamine.
Reason: Penicillin (G) is effective against gram-positive as well as gram-negative bacteria.
Anti - allergy drugs are called:
Which of the following compound does not contain sulphur atom?
The functions of antihistamines are ______.
The mechanism of action of "Terfenadine" (Seldane) is ______.
