Question

write short note on anti histamines​

Answer 1

Heya user ! ️✋

✍Here's the required answer :

☀Anti - histamines :

⚪Antihistamines or anti allergic drugs are used as treatment for allergy.

⚪Allergy caused by an excessive response of the body to allergens.

⚪Excessive secretion of histamines, a chemical secreted by mast cells in body ,also cause allergy.

⚪Example : diphenyl hydramine, chloropheniramine.

*[ The words in bold and italics are keywords ]

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Answer 2

Answer:

here is your answer

Explanation:

Antihistamines are drugs used to treat the symptoms of allergies and allergic rhinitis by blocking the action of histamine, a chemical released by the immune system in allergic reactions.