Sedating antihistamines wiki


24-Jan-2018 06:35

However, some people may experience some slight sleepiness, headache, mouth dryness, lightheadedness, vision problems (mainly blurred vision), palpitations and fatigue.

Although the drug was only authorized by the FDA on , it was already available in most European countries.

Early classes of drugs, such as barbiturates, have fallen out of use in most practices but are still prescribed for some patients.

In children, prescribing hypnotics is not yet acceptable unless used to treat night terrors or somnambulism.

Because of its antihistamine effects it can also be used for the treatment of severe cases of itching, hyperalgesia and motion sickness-induced nausea; it has also been used in some cases to relieve the effects of opioid withdrawal.

Even though it is an effective sedative, hypnotic, and anxiolytic, it shares virtually none of the abuse, dependence, addiction, and toxicity potential of other drugs used for the same range of therapeutic reasons.

In 1964, it was known that histamine stimulated the secretion of stomach acid, and also that traditional antihistamines had no effect on acid production.

From these facts the SK&F scientists postulated the existence of two different types of histamine receptors.

This in turn prevents the release of other allergy chemicals and increase the blood supply to the area, and provides relief from the typical symptoms of hay fever.

Whereas the term sedative describes drugs that serve to calm or relieve anxiety, the term hypnotic generally describes drugs whose main purpose is to initiate, sustain, or lengthen sleep.



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