Are sedating antihistamines addictive

Histamine is stored in Antihistamines are medications that counteract the effect of the natural chemical histamine.They are valuable drugs to reduce symptoms due to allergic diseases, especially those mediated by histamine.They do not always completely control the allergic reaction because they do not counteract other chemicals that may be responsible for the symptoms.There are at least two kinds of histamine receptors, hence are mainly H1 blockers.Antihistamines make your sleepy by antagonizing central histimine-1 (H-1) receptors in the brain.The ones you see in over-the-counter sleep aids are usually diphenhydramine and hydroxyzine.At higher doses it may result in slurred speech, staggering gait, poor judgment, and slow, uncertain reflexes.

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Doxylamine is one of the most powerful OTC sedatives in the U. Many patients taking doxylamine encounter dry mouth, nausea, and drowsiness.

There is some overlap between the terms "sedative" and "hypnotic".

Advances in pharmacology have permitted more specific targeting of receptors, and greater selectivity of agents, which necessitates greater precision when describing these agents and their effects: Doctors often administer sedatives to patients in order to dull the patient's anxiety related to painful or anxiety-provoking procedures.

For people who need to get to sleep, however, the drowsiness is the main benefit of antihistamines.

These are usually not prescription drugs and can be purchased at retailers over-the-counter.

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