ragweed


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ragweed

(răg′wēd′)
n.
1. Any of various weeds of the genus Ambrosia of the composite family, having small, greenish, unisexual flower heads and producing abundant pollen that is one of the chief causes of hay fever.
2. Chiefly British Ragwort.

ragweed

A plant of the family Compositae, the pollen from which is highly allergenic and the most common cause of allergic rhinitis.
 
Diagnosis
Bronchial provocation testing, in which pollen is inhaled through a dosimeter.
 
Management
Avoidance of pollens by staying indoors; use of cromolyn, antihistamines, sympathomimetics, theophylline and corticosteroids.

ragweed

Ambrosia artemisiifolia Allergy medicine Any of the weedy composite herbs of family Compositae, the pollen from which is highly allergenic Diagnosis Bronchial provocation testing, in which pollen is inhaled through a dosimeter Management Avoid pollen, stay indoors, cromolyn, antihistamines, sympathomimetics, theophylline, corticosteroids Drug slang A street term for low quality marijuana or heroin
References in periodicals archive ?
Is sunflower (Helianthus annuus) at risk to damage from Ophraella communa, a natural enemy of common ragweed (Ambrosia artemisiifolia)?
A pooled analysis indirectly compared the treatment effect of SLIT (N=3094 in Timothy grass SLIT tablet trials; N=58 in ragweed SLIT tablet trials) vs pharmacotherapies (montelukast, N=6799; desloratadine, N=445; or mometasone furoate nasal spray, N=2140) for seasonal and perennial AR.
Those results suggested that as ragweed plants produce more pollen, sensitization rates are likely to increase in areas where the plant is already endemic.
* The report reviews key players involved in the therapeutics development for Ragweed Allergy and enlists all their major and minor projects
- Ragweed Allergy Global Clinical Trials Review, H2, 2014
The first review article on the pollinosis in Japan "Pollen allergy" (10) was published by Ishizaki in 1957, and the first systematic study of pollinosis in Japan was carried out on ragweed pollinosis by Araki in 1960-61.
"Most of the companies have no plans to take SLIT beyond the standardized extracts, which means grass, ragweed, house dust mite, and cat.
* SLIT for grass allergy will be approved for patients aged 5-65, while SLIT for ragweed will receive an indication for 18- to 65-year-olds.
If you notice eating watermelon, cantaloupe or avocado make you cough and itch, it may be a symptom of ragweed allergy.
Ragweed pollen is the primary culprit of fall allergies.
"The 90 degree heat, the humidity, and the noxious levels of mold combined with the high levels of weed and ragweed pollen spell health hazards for many in the Midwest today," says Dr.
Hopkins-led team studies ragweed pill An international team of researchers, led by physician-scientists at Johns Hopkins, reports that a once-daily tablet containing a high dose of a key ragweed pollen protein effectively blocks the runny noses, sneezes, nasal congestion and itchy eyes experienced by ragweed allergy sufferers.