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Bilastine is an antihistamine medication used to treat hives (), allergic rhinitis and itchy inflamed eyes (allergic conjunctivitis) caused by an allergy. [6] It is a second-generation antihistamine and takes effect by selectively inhibiting the histamine H 1 receptor, preventing these allergic reactions. [7]
Other common side effects for all generations include gastrointestinal side effects, headaches and tiredness. [9] Antihistamines are generally safe to use during pregnancy with second-generation antihistamines being more preferred due to their lack of sedation. [10]
The most common adverse effects noted for second-generation agents include drowsiness, fatigue, headache, nausea and dry mouth. [4] Continuous and/or cumulative use of anticholinergic medications, including first-generation antihistamines, is associated with higher risk for cognitive decline and dementia in older people. [8] [9]
Antihistamines are drugs which treat allergic rhinitis, common cold, influenza, and other allergies. [1] Typically, people take antihistamines as an inexpensive, generic (not patented) drug that can be bought without a prescription and provides relief from nasal congestion, sneezing, or hives caused by pollen, dust mites, or animal allergy with few side effects. [1]
Hydroxyzine works by blocking the effects of histamine. [9] It is a first-generation antihistamine in the piperazine family of chemicals. [8] [4] Common side effects include sleepiness, headache, and dry mouth. [8] [9] Serious side effects may include QT prolongation. [9] It is unclear if use during pregnancy or breastfeeding is safe. [8]
Common side effects include sleepiness, dry mouth, cough, vomiting, and diarrhea. [3] Use in pregnancy appears safe but has not been well studied and use when breastfeeding is of unclear safety. [5] It is classified as a second-generation antihistamine and works by blocking histamine H 1-receptors. [6] [3]
Histamine is often explored as a potential cause for diseases related to hyper-responsiveness of the immune system. In patients with asthma, abnormal histamine receptor activation in the lungs is associated with bronchospasm, airway obstruction, and production of excess mucus. Mutations in histamine degradation are more common in patients with ...
Clemastine is an antihistamine with anticholinergic and sedative effects. Antihistamines competitively bind to histamine receptor sites, thus reducing the neurotransmitter's effects. [9] Effects of histamine (which are countered by antihistamines) include: Increased capillary permeability; Increased capillary dilatation; Edema (i.e., swelling ...