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Allergy tablets: Most allergy tablets are medications that fall into the category of antihistamines that block the effect of histamine. This treats symptoms such as sneezing, itching, runny nose, etc. Sometimes antihistamines are combined with decongestants to help with stuffy nose. Studies are evaluating "allergy tablets" that may work similar to allergy shots where the tablet contains the pollen, etc. ...Read moreSee 1 more doctor answer
Allergies occur when your immune system is triggered by envirionmental factors it should ignore--for example, pollen in the air, or dander on a cat or dog--and creates cells to fight against them. An allergic reaction typically causes itching, congestion, or drainage, and ...Read more
Allergy meds: If your tablet is Allegra and it's non-sedating, you can take it anytime. Ideally, you'd like to take it 30-60 minutes before your allergy exposure, if there's a specific thing you react to. If you take benadryl, (diphenhydramine) best take it at night if it sedates you. If you take sudafed for congestion, avoid taking it at night because it causes insomnia. Prescription sprays, any time you want. Singular --night. ...Read more
Yes: In general that is a correct statement. ...Read more
Ok but...: As antihistamines have a high safety margin, you may just end up with dry mouth and perhaps drowsiness if you take 5 times the dose in one gulp. The question is why did you take so many at one time? The answer would be different when a decongestant is also present since such a high dose of decongestant can raise your blood pressure and heart rate significantly and potentially causing a stroke. ...Read more
Why do some OTC allergy tablets work for some people but not for others? Which OTC allergy med works best in most people?
Good question!: It is not clear why some persons respond more favorably to some antihistamines and not others. There are theories, but still not completely known. In my experience zyrtec (cetirizine) works very well for most people. Also, the approved doses of antihistamines were determined based on the minimal effective dose for the majority of people. Some persons may just need a higher dose! ...Read more
Depends: There are different types of allergy tablets. Antihistamines (claritin, zyrtec, allegra) block the effects of histamine so they can decrease itching and redness. The tab singulair (montelukast) is a leukotriene receptor blocker which blocks the effects of leukotrienes--this can also decrease itching and redness. Oral steroid tablets are very potent and have side effects-they decrease inflammation. ...Read more
Decrease inflammatio: Allergy tablets, I am guessing, are referring to antihistamines such as zyrtec (cetirizine), Claritin (loratadine), or Allegra (fexofenadine) act by blocking histamine receptors, which are responsible for the inflammation, swelling, itching, and erythema associated with allergic rashes. ...Read more
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