antihistamine

noun

an·​ti·​his·​ta·​mine ˌan-tē-ˈhi-stə-ˌmēn 

-mən,

ˌan-tī-

: any of various compounds that counteract histamine in the body and that are used for treating allergic reactions (such as hay fever) and cold symptoms

antihistamine adjective

antihistaminic

ˌan-tē-ˌhi-stə-ˈmi-nik 

ˌan-tī-

adjective or noun

Examples of antihistamine in a Sentence

Recent Examples on the Web

Over 350 drugs across all major medication categories—including antihistamines, diabetes meds, antidepressants, and chemotherapy, as well as some vitamin and mineral supplements—can leave a bad taste in your mouth. —Katie Camero, SELF, 27 Nov. 2024

According to one study, apple juice may interact with certain antihistamines, antihypertensives, and antiasthmatic medications.22 However, these potential interactions are not well understood, making more research necessary. —Brittany Lubeck, Ms, Rdn, Verywell Health, 28 Oct. 2024

Dry, itchy skin can sometimes be associated with overactive histamines, and suggests taking a daily antihistamine until the condition has resolved. —Kelsey Eisen, Allure, 28 Oct. 2024

Consider nasal sprays or other medications: Steroid sprays can reduce inflammation in your nose, and antihistamines help stop sneezing, sniffling, and itching. —Dominique Fluker, Essence, 22 Oct. 2024

Word History

First Known Use

1946, in the meaning defined above

Kids Definition

antihistamine

noun

an·​ti·​his·​ta·​mine ˌant-i-ˈhis-tə-ˌmēn 

-mən,

ˌan-ˌtī-

: any of various drugs used for treating allergic reactions and cold symptoms

Medical Definition

antihistamine

1 of 2 adjective

an·​ti·​his·​ta·​mine ˌant-i-ˈhis-tə-ˌmēn, ˌan-ˌtī-, -mən 

: tending to block or counteract the physiological action of histamine

human blood lacks antihistamine activity

antihistamine

2 of 2 noun

: any of various compounds that oppose the actions of histamine and are used especially for treating allergic reactions (as hay fever), cold symptoms, and motion sickness