histamine

A substance released from certain cells in response to allergens, associated with the development of allergic symptoms, including itchy eyes, sneezing and congestion.

Home » histamine

Last Updated

October 7, 2025

Explore More

Bottles of otc pain relievers including ibuprofen, aspirin, and acetaminophen in a medicine cabinet
Pain Relievers: Understanding Your OTC Options
Over-the-counter (OTC) pain relievers are medicines you can buy at a store, without a prescription from your doctor. They can decrease or stop pain. They can also lower fevers. But not all pain rel...
What You Can Do to Maintain Your Health
What You Can Do to Maintain Your Health
A lot of factors play a role in staying healthy. In turn, good health can decrease your risk of developing certain diseases or conditions. These include heart disease, stroke, some cancers, and inj...
COVID-19 Vaccine Frequently Asked Questions
COVID-19 Vaccine Frequently Asked Questions
During the COVID-19 pandemic, public-private partnerships produced a novel vaccine for COVID-19. While COVID-19 is no longer a pandemic, the virus still persists much like influenza. Vaccines for C...