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  2. Cetirizine - Wikipedia

    en.wikipedia.org/wiki/Cetirizine

    Cetirizine is a second-generation antihistamine used to treat allergic rhinitis (hay fever), dermatitis, and urticaria (hives). [5] It is taken by mouth. [6] Effects generally begin within thirty minutes and last for about a day. [6] The degree of benefit is similar to other antihistamines such as diphenhydramine, which is a first-generation ...

  3. Ebastine - Wikipedia

    en.wikipedia.org/wiki/Ebastine

    Ebastine is a H 1 antihistamine with low potential for causing drowsiness. It does not penetrate the blood–brain barrier to a significant amount and thus combines an effective block of the H 1 receptor in peripheral tissue with a low incidence of central side effects, i.e. seldom causing sedation or drowsiness. [1] [2] [3]

  4. Which Allergy Medicine Is Actually Most Effective? - AOL

    www.aol.com/lifestyle/allergy-medicine-actually...

    “Zyrtec can cause drowsiness,” Dr. Brooks says. “While not as frequent as for older antihistamines like Benadryl, I still see drowsiness with Zyrtec quite a bit. In fact, pilots are not ...

  5. Fexofenadine - Wikipedia

    en.wikipedia.org/wiki/Fexofenadine

    Fexofenadine does not readily cross the blood–brain barrier, so is less likely to cause drowsiness in comparison to other antihistamines that readily cross that barrier (i.e., first-generation antihistamines such as diphenhydramine). In general, fexofenadine takes about an hour to take effect, though this may be affected by the choice of ...

  6. Levocetirizine - Wikipedia

    en.wikipedia.org/wiki/Levocetirizine

    Levocetirizine, sold under the brand name Xyzal, among others, is a second-generation antihistamine used for the treatment of allergic rhinitis (hay fever) and long-term hives of unclear cause. [3] It is less sedating than older antihistamines. [4] It is taken by mouth. [3] Common side effects include sleepiness, dry mouth, cough, vomiting, and ...

  7. H1 antagonist - Wikipedia

    en.wikipedia.org/wiki/H1_antagonist

    H 1-antihistamines can be administered topically (through the skin, nose, or eyes) or systemically, based on the nature of the allergic condition. The authors of the American College of Chest Physicians Updates on Cough Guidelines (2006) recommend that, for cough associated with the common cold, first-generation antihistamine-decongestants are ...

  8. You May Want To Skip Allergy Meds With Decongestant In The ...

    www.aol.com/may-want-skip-allergy-meds-155300887...

    Allergy Tablet. Xyzal, a.k.a. levocetirizine, "is the best prescription-strength oral antihistamine," Dr. Li says. It helps with sneezing, a runny or itchy nose or itchy throat, and watery eyes.

  9. Clemastine - Wikipedia

    en.wikipedia.org/wiki/Clemastine

    Clemastine is an antihistamine with anticholinergic and sedative effects. Antihistamines competitively bind to histamine receptor sites, thus reducing the neurotransmitter's effects. [9] Effects of histamine (which are countered by antihistamines) include: Increased capillary permeability; Increased capillary dilatation; Edema (i.e., swelling ...