Question

Name the compound used as antihistamines.

Answer 1

 Antihistamines are drugs that block the action of histamine (a compound released in allergic inflammatory reactions) at the H1 receptor sites, responsible for immediate hypersensitivity reactions such as sneezing and itching.

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Answer 2

Answer: Allegra

Histamine is a substance which when released in the human body produces allergic responses. It causes allergy symptoms when it binds to receptors on certain cells of the body. Antihistamines are the type of drugs which helps in decreasing the effects of histamine by binding to the receptors once occupied by the histamines. Antihistamines can prevent the responses generated by the histamines such as congestion, running nose, itching, sneezing, nasal swelling, skin rashes, itchy and watery eyes.

Allegra is an antihistamine which can stop the effects of histamine, it blocks the histamine receptor H1. It can prevent symptoms such as runny nose, sneezing, red and watery eyes, itchy skin and skin rashes.