1907— Adolf Windaus and his associate W. Vogt produce histamine synthetically by removing the carboxyl group from the amino acid histidine. 1910—Henry Dale and his colleagues at the Wellcome ...

With histamine intolerance, there is a problem with enzyme pathways that break down histamines. This is possibly caused by ...

Handling histamine intolerance can be difficult, especially if you enjoy eating foods high in histamine. Side effects like headaches, hives, and gastrointestinal problems can quickly spoil your day.

Xyzal (levocetirizine) and Zyrtec (cetirizine) are over-the-counter (OTC) allergy medications. Learn about their key ...

We're diving into some big tuna recalls in the U.S., revealing what went wrong and what consuming tuna from a tainted product could have meant for consumers.

Allergic inflammation plays a big role in allergy reactions and contributes to the itching and chewing commonly seen with ...

Plus: "I’ve just finished a course of antibiotics for a stubborn flu and feel tired most of the time. What can I take to give ...