
This medicine is an antihistamine used to treat anxiety, to relieve itching caused by allergic conditions, and to cause drowsiness. Antihistamines work by decreasing the effects of histamine, a chemical the body releases that narrows air passages in the lungs and contributes to inflammation.

Asthma : A common disorder in which chronic inflammation of the bronchial tubes (bronchi) makes them swell, narrowing the airways. Asthma involves only the bronchial tubes and does not affect the air sacs ( alveoli ) or the lung tissue (the parenchyma of the lung) itself.

Disease: Illness or sickness often characterized by typical patient problems (symptoms) and physical findings (signs). Disruption sequence: The events that occur when a fetus that is developing normally is subjected to a destructive agent such as the rubella (German measles) virus.

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