Newer non sedating antihistamines dating newsletter template

" April 25, 2003 -- Timely research for the start of hay fever season: Despite their higher cost, the newer, so-called "second generation" of more expensive "nonsedating" prescription antihistamines may be no more effective at preventing fatigue and memory lapses than older over-the-counter formulas such as Benadryl.So concludes a new study published in the current issue of Journal of Allergy and Clinical Immunology in which researchers compared 18 previous trials investigating antihistamine-caused sedation levels in 1,500 people between ages 8 and 81.

Oral antihistamines are the most commonly prescribed allergy medication.Finding the best antihistamines can sometimes be a confusing issue, since so many OTC and prescription choices are available.H1 receptors are associated with human tissue involving capillaries, and H2 receptors predominate in the lining of the stomach.Even the best antihistamines do not offer anything in terms of permanent relief, nor do they relieve nasal congestion.Once the mast cell-antibody-antigen complex is formed, a complex series of events occurs that eventually leads to cell degranulation and the release of histamine (and other chemical mediators) from the mast cell or basophil.

Once released, the histamine can react with local or widespread tissues through histamine receptors.Additional administration of epinephrine, often in the form of an autoinjector (Epi-pen), is required by people with such hypersensitivities.H-antihistamines can be administered topically (through the skin, nose, or eyes) or systemically, based on the nature of the allergic condition.Because some can cause serious side effects or interact with other medications you are taking, be sure to let your doctor know all the medications you take.Your doctor can guide you to the right antihistamine for you. You may have taken antihistamines in the past and found it hard to concentrate or stay awake.