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Hay fever

Histamine is responsible for many of the symptoms associated with hay fever and other allergies An antihistamine relieves these symptoms by blocking the action of histamine... [Pg.1125]

Two newer potent selective H -antagonists, terfenadine (23) (132) and astemizole (24) (133), have been developed which have neither the sedative nor the anticholinergic Habilities of the earlier agents. Both of these compounds have proven efficacious in the treatment of hay fever and produce very few side effects, prompting a re-evaluation of the role of antihistamines in asthma treatment. [Pg.444]

Forest systems also act as sources of CO2 when controlled or uncontrolled burning and decay of litter occur. In addition, release of ethylene occurs during the flowering of various species. One additional form of emission to the atmosphere is the release of pollen grains. Pollen is essential to the reproductive cycle of most forest systems but becomes a human health hazard for individuals susceptible to hay fever. The contribution of sulfur from forests in the form of dimethyl sulfide is considered to be about 10-25% of the total amount released by soils and vegetation (12). [Pg.117]

Pollen Small particles of the male fertilizing seeds of plant life, which may cause various allergic reactions especially of the respiratory tract, known as hay fever. [Pg.1467]

Niese-fieber, n. hay fever, -mittel, n. aternuta tive, sternutator, sneeze-provoking agent, nieseu. v.i. sneeze. [Pg.320]

Allergy. Figure 2 Histamine H-1 receptor antagonists inhibit response of target cells to histamine and relieve hay fever-like symptoms. [Pg.61]

Decongestants are used to treat the congestion associated with rhinitis, hay fever, allergic rhinitis, sinusitis, and the common cold. In addition, they are used in adjunctive therapy of middle ear infections to decrease congestion around the eustachian tube Nasal inhalers may relieve ear block and pressure pain during air travel. Many can be administered orally as well as topically, but topical application is more effective than the oral route. [Pg.329]

The most serious adverse reaction associated with these drugs is agranulocytosis (decrease in the number of white blood cells [eg, neutrophils, basophils, and eosinophils]). Reactions observed with agranulocytosis include hay fever, sore throat, skin rash, fever, or headache Other major reactions include exfoliative dermatitis, granulocytopenia, aplastic anemia, hypoprothrombinemia, and hepatitis. Minor reactions, such as nausea, vomiting, and paresthesias, also may be seen. [Pg.535]

Agranulocytosis is potentially the most serious adverse reaction to methimazole and propylthiouracil. The nurse notifies the primary health care provider if fever, sore throat, rash, headache, hay fever, yellow discoloration of the skin, or vomiting occurs. [Pg.536]

The belief that histamine (HT) has a central effect stems from the knowledge that all the classical antihistamines (Hi receptor antagonists) used to treat allergic reaction, such as hay fever, caused marked sedation if, like mepyramine and promethazine, they can cross the blood-brain barrier, but fail to do so if, like terfenedine and cetirizine, they do not. [Pg.269]

Evening primrose oil, passion flowers, sage, valerian root, and wild yam No demonstrated efficacy Not recommended Caution with all plant products in women with hay fever and plant allergies... [Pg.775]

Plantaginaceae, and Compositae. Ragweed (Ambrosia spp.) is the most important single allergenic plant on the North American continent and affects more of our citizens than does smog. Hay fever and similar allergies from weed pollen cause tremendous... [Pg.10]

Anti catarrhal. The mucus-reducing activity of elder may be due to its high potassium content, but in any case this plant helps to clear up bronchial mucus, hay fever and sinus congestion. Both flowers and berries help to dry up a runny nose. When the flowers are taken before hay fever season they help to lessen its severity. A gargle made of elder blossoms steeped in vinegar can be used to treat sore throats and tonsillitis. Elder has even successfully treated catarrhal deafness and children s croup. A tea made of elder flowers can ease hoarseness and make the voice clear. Parts used flowers, berries. [Pg.26]

Anti-inflammatory. Elder flowers help soothe an inflamed respiratory tract irritated by hay fever and sinusitis. Elder has even been used to calm the agony of gout. Cool, strained elder flower tea makes an excellent application to inflamed eyes. Elderberries taken internally as a tea, tincture or syrup help to soothe irritated bowels or colitis. Topical applications are also helpful for glandular swellings. Parts used flowers, berries. [Pg.27]

Decongestant. Elder helps to move phlegm and clear sinus congestion, inner ear infection, hay fever and bronchial congestion. Part used flowers. [Pg.28]

Elder blossoms, eyebright (Euphrasia officinalis) and goldenrod herb make a beneficial infusion to treat hay fever due to its anti-inflammatory properties. [Pg.58]

J Seasonal (hay fever) occurs in response to specific allergens (pollen from trees, grasses, and weeds) present at predictable times of the year (spring and/or fall blooming seasons) and typically causes more acute symptoms. Perennial (intermittent or persistent) occurs year round in response to nonseasonal allergens (e.g., dust mites, animal dander, molds) and usually causes more subtle, chronic symptoms. [Pg.910]

Relating the Time-Course of Plasma Concentrations to the Time-Course of Effect A critical decision to be made after the first human study is whether the compound s speed of onset and duration of action are likely to be consistent with the desired clinical response. Speed of onset is clearly of interest for treatments which are taken intermittently for symptoms rehef, for example, acute treatments for migraine, analgesics, or antihistamines for hay fever. Duration of action phase I is particularly important when the therapeutic effect needs to be sustained continuously, such as for anticonvulsants. The first information on the probable time course of action often comes from the plasma pharmacokinetic profile. However, it has become increasingly evident that the kinetic profile alone may be misleading, with the concentration-time and the effect-time curves being substantially different. Some reasons for this, with examples, include... [Pg.770]

Are regulatory T cells the target of venom immunotherapy Curr Opin Allergy Clin Immunol 2005 5 365-369. Strachan DP Hay fever, hygiene, and household size. BMJ 1989 299 ... [Pg.157]

Varney VA, Gaga M, Frew AJ, Aber VR, Kay AB, Durham SR Usefulness of immunotherapy in patients with severe summer hay fever uncontrolled by antiallergic drugs. BMJ 1991 302 265-269. [Pg.173]

Creticos PS, Adkinson NF Jr, Kagey-Sobotka A, Proud D, Meier HL, Naclerio RM, et al Nasal challenge with ragweed pollen in hay fever patients. Effect of immunotherapy. [Pg.173]

Braun-Fahrlander, C., Gassner, M. and Grize, L. (1999). Prevalence of hay fever and allergic sensitization in farmer s children and their peers living in the same rural community. SCARPOL team. Swiss Study on Childhood Allergy and Respiratory Symptoms with Respect to Air Pollution, Clin. Exp. Allergy, 32, 28-34. [Pg.123]

Hay fever is the inflammatory reaction to inhaling pollen, especially grass pollen. Symptoms include copious secretions of mucus in the nose, and itchy and watery eyes. The pollen grains enter interstitial fluid through the mucous membranes and initiate secretion of IgE antibodies. On the next exposure to pollen, the grains bind to the IgE... [Pg.399]


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