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Sedating antihistamines asthma

This and the decongestant phenylpropanolamine are used alone or in conjunction with other medications to relieve nasal congestion.Side effects include nervousness and difficulty sleeping.Unlike over-the-counter antihistamines, the following antihistamines are non-sedating; they will not make you tired, nor will they impair motor function or mental acuity.

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First, it takes an hour or so for the antihistamines to get in your system after you swallow them. Second, you may have to take a larger than recommended dose.If, however, you experience strictly skin symptoms, you can usually treat yourself with simple antihistamines.Benadryl works well, but it is very sedating and also only lasts a few hours.I also frequently see patients for evaluation of hives when their rash is something altogether different.So, dear reader, here is a quick primer on what to do if you get hives. Hives can vary somewhat in appearance, but generally are dime sized to half-dollar sized and have a red rim with a clear center.Because there is a small possibility of sedation, care should be taken with the first few doses.Zyrtec: 1 tablet per day as needed Zyrtec Syrup: Check with your doctor for proper dosage and instructions Astelin: 2 sprays in each nostril twice a day as needed The “D” in Allegra-D and Claritin-D refers to the decongestant pseudoephedrine.Antihistamines are dosed for the nose and the amount of histamine released in a hives outbreak can be much larger than that released in a sneezing attack.If one cetirizine or fexofenadine hasn’t worked in an hour, take a second one.If your hives resolve, you might want to consider continuing a long-acting antihistamines once or twice a day for two weeks to fend off any recurrent bouts. ask you to remember that these are generic descriptions of the medications and that your own doctor’s specific instructions should always be followed over the information provided here.


  1. The doctors at Allergy & Asthma Specialists, Ltd. ask you to remember that these are. Some of the newer antihistamines are considered to be “low sedating.

  2. The newer, second-generation ie, nonsedating antihistamines are usually preferable to avoid sedation and other adverse effects associated with the older.

  3. First-generation H1 antihistamines cross the blood-brain barrier, and in usual doses. potentially cause sedation and impair cognitive function and psychomotor performance. Second-generation H1 antihistamines such as cetirizine, desloratadine. Asthma. Anaphylaxis. Nonallergic hereditary or acquired angioedema.

  4. In asthma which is predominantly a disease of the lower airway, histamine is not a part of the. Therefore anti histaminics have no role to play in treatment of asthma. Can long-term second generation antihistamine use cause sedation?

  5. Sep 26, 2013. Antihistamines can help treat the itchy skin of eczema. The sedating effect is helpful because scratching always makes eczema worse. to an enlarged prostate gland; Breathing problems, including asthma, emphysema.

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