The worldâs largest wine glass has been unveiled in Lebanon, blowing Portugalâs previous 1998 record out of the water. Guinness World Records rep Elizabeth Smith hands over the certificate to the brains behind the worldâs largest wine glass (EPA)
An antihistamine is a type of pharmaceutical drug that opposes the activity of histamine receptors in the body.Antihistamines are subclassified according to the histamine receptor that they act upon: the two largest classes of antihistamines are H1-antihistamines and H2-antihistamines.n H3-antihistamine is a classification of drugs used to inhibit the action of histamine at the H3 receptor. H 3 receptors are primarily found in the brain and are inhibitory autoreceptors located on histaminergic nerve terminals, which modulate the release of histamine.
A word of caution: It is important to take all medications, including those you obtain over-the-counter, as directed. Using these medications improperly can put you at risk for high blood pressure, stroke, heart attack, and convulsions. Over-the-Counter Antihistamines. Antihistamines are commonly used to treat allergic rhinitis (for example, hay fever) and hives. They block a chemical called histamine, which is produced by your body when you have an allergic reaction. Blocking histamine can help control sneezing, itching, runny nose, and hives. Many people take antihistamine medications proactively â before they think their allergies may flare-up â each allergy season.