Anticholinergic drugs and functional, cognitive impairment and behavioral disturbances in patients from a memory clinic with subjective cognitive decline or neurocognitive disorders.
Alzheimer's Research and Therapy. Daroff RB, et al. Sleep and its disorders. In: Bradley's Neurology in Clinical Practice. Saunders Elsevier; Owens JA. Behavioral sleep problems in children. Chuang YF, et al. Midlife anticholinergic drug use, risk of Alzheimer's disease, and brain atrophy in community-dwelling older adults.
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What is reflexology? Because of their sedating effect, cold medicines with antihistamines are labeled for nighttime use.
Take this labeling seriously, as some include medications like doxylamine that are more sedating than others. Check labels for dosages, as well, as these may vary, even within brands. More is not better — read labels carefully and take only as recommended. Smart use of allergy medications — knowing how they treat symptoms, being aware of potential unwanted side effects and, most important, monitoring their effect on you and your health — is just one step toward controlling allergy and cold symptoms.
Even more important: knowing what you are allergic to and taking steps to prevent or reduce exposure. If your allergy symptoms tend to last longer than two weeks or are not adequately controlled with over-the-counter medications, schedule an appointment with a board-certified allergist for a full diagnosis. Antihistamines and intranasal corticosteroids are intended for symptom relief.
If antihistamines or intranasal corticosteroids are causing side effects such as drowsiness or other problems, there are other treatment options your doctor can offer you, such as allergen immunotherapy.
Table of Contents. Search for:. We use cookies to ensure that we give you the best experience on our website. And because of their powerful sedating abilities, antihistamines are also the main ingredients that are found in many over-the-counter sleep aids.
But why do antihistamine medications make us sleepy? The answer to this question starts with histamines. Histamines are chemical compounds that play a couple of roles in the body. Histamine is a natural chemical in the body that performs numerous functions such as playing a part in the allergy response. Allergies occur when your immune system mistakenly thinks a harmless foreign substance, such as pollen or pet dander, is actually dangerous. Histamines will jump to action, which will cause the range of symptoms associated with allergies such as sneezing, itchy eyes, chest congestion, wheezing, and more.
When you get injured or your immune system detects a potentially dangerous foreign substance, certain white blood cells and tissue cells release histamines that pursue and attach to other cells that have a histamine receptor.
The histamines induce an inflammatory response, where they will dilate the blood vessels that will increase the blood flow to the site of injury or invasion. There are some side effects that come along with this healing process.
Antihistamines are usually used to ease allergy symptoms. They work by blocking histamines attachment to receptors, which prevent the compounds from carrying out their functions.
They can cross the blood-brain barrier and inhibit one of the other functions of histamines, which is the role they play in regulating sleep and wakefulness.
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