antihistamine - Definition & Meaning

a type of medicine used to treat allergies or neutralize their effectsa type of medicine used to treat allergies or neutralize their effects

Antihistamine is a type of medication used to ease allergy symptoms by blocking the action of histamines in the body. Histamines are chemicals released by the immune system during allergic reactions, causing symptoms such as sneezing, itching, runny nose, and watery eyes. Antihistamines work by stopping histamines from attaching to receptors in the cells, and so reducing or preventing these allergic symptoms. They are commonly used to treat hay fever, hives, pink eye caused by allergies, and sometimes symptoms of the common cold.Antihistamine is a type of medication used to ease allergy symptoms by blocking the action of histamines in the body. Histamines are chemicals released by the immune system during allergic reactions, causing symptoms such as sneezing, itching, runny nose, and watery eyes. Antihistamines work by stopping histamines from attaching to receptors in the cells, and so reducing or preventing these allergic symptoms. They are commonly used to treat hay fever, hives, pink eye caused by allergies, and sometimes symptoms of the common cold.

例句

He took an antihistamine to relieve his allergy symptoms.
他服用了抗组胺药来缓解过敏症状。
Antihistamines can help reduce sneezing and itching caused by allergies.
抗组胺药可以帮助减少过敏引起的打喷嚏和瘙痒。
The doctor recommended an antihistamine for his seasonal allergies.
医生推荐了一种抗组胺药来治疗他的季节性过敏。