Of sedating antihistamines

of sedating antihistamines-11
Some medications treat multiple conditions and appear multiple times.They are central nervous depressants and interact with brain activity causing its deceleration.

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People who have difficulty dealing with stress, anxiety or sleeplessness may overuse or become dependent on sedatives.

Some heroin users may take them either to supplement their drug or to substitute for it.

They can cross the blood-brain barrier and inhibit one of the other functions of histamines — that is, the pivotal role they play in regulating sleep and wakefulness.

This disruption of the action of histamines in the brain results in drowsiness.

Allergies occur when your immune system erroneously thinks an innocuous foreign substance, such as pollen or pet dander, is actually dangerous.

Histamines jump to action, causing the range of symptoms associated with allergies (sneezing, itchy eyes, chest congestion, wheezing, etc.).

Antihistamines are typically used to ease allergy symptoms, and work by blocking histamines' attachment to receptors, preventing the compounds from carrying out their functions.

But older, first-generation antihistamines, including diphenhydramine and doxylamine succinate, don't discriminate between which histamine receptors they block.

Drowsiness is one of the major side effects of some antihistamines, such as diphenhydramine (Benadryl) and doxylamine succinate (the antihistamine found in Nyquil).

And because of their powerful sedating qualities, antihistamines are also the active ingredients found in numerous over-the-counter sleep aids. The story begins with histamines, which are chemical compounds that play a couple of roles in the body, though they're best known for their involvement in the body's local immune responses.


Comments Of sedating antihistamines

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