what is the difference between cetirizine and loratadine hayfever tablets?
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One major difference is their onset of action. Cetirizine relieves allergy symptoms in as little as one hour while loratadine may take up to three hours to be effective. The other difference is that cetirizine is more sedating than loratadine and is more likely to cause drowsiness.
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Allegra is a brand name for the drug fexofenadine and Claritin is a brand name for the drug loratadine. Both fexofenadine and loratadine are popular antihistamines with many similarities but there are some important differences.
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1. Antihistamines. Benadryl (diphenhydramine), Zyrtec (cetirizine), and Claritin (loratadine) are commonly used antihistamines that relieve allergy symptoms or counteract allergic reactions. Antihistamines are usually safe but make some dogs drowsy and others hyperactive.
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For example, while Claritin is effective for treating hay fever and hives, other antihistamines, such as Zyrtec and Allegra, work better and faster and last longer. Zyrtec and Allegra work quickly for the treatment of allergic rhinitis and hives, typically within less than an hour.
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Cetirizine is an allergy medication that you can buy over-the-counter at a pharmacy. That is, you don't need a prescription. The medication comes in capsules, tablets, and a syrup. You typically take it just once per day, and it begins to work quickly.
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What Is Zyrtec? Zyrtec (cetirizine hydrochloride) is an antihistamine that treats symptoms, such as itching, runny nose, watery eyes, and sneezing from hay fever (allergic rhinitis) and other allergies, such as allergies to molds and dust mites. Zyrtec is available in generic form and over-the-counter (OTC).
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In other cases, a prescription medication works in a different way than what you can buy over the counter. If you have hay fever, you can treat the sneezing and stuffy, itchy nose with an OTC antihistamine such as cetirizine (Zyrtec), fexofenadine (Allegra), or loratadine (Claritin).
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Other differences: Allegra works within two hours and Zyrtec works within one hour. Several studies have found cetirizine (Zyrtec) to be more effective than fexofenadine (Allegra) at relieving symptoms of allergic rhinitis and urticaria, and it appears to have a longer duration of action.
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Loratadine, sold under the brand names Claritin and Claritin-D (which contains loratadine plus pseudoephedrine), is an over-the-counter antihistamine medication. The drug is often used to treat nasal allergies (allergic rhinitis) and hives (urticaria).
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Conclusion: Cetirizine was associated with significantly greater suppression of skin reactivity to histamine compared with desloratadine during 24 hours after a single dose, with a consistent duration of action for cetirizine, as previously reported.
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Are Benadryl and Claritin the Same Thing? Benadryl (diphenhydramine) and Claritin (loratadine) are antihistamines used to treat allergy symptoms, such as itching, hives, runny nose, watery eyes, and sneezing from hay fever (allergic rhinitis) and other allergies, such as allergies to molds and dust mites.
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Cetirizine (brand name Zyrtec®, Reactine®) is an antihistamine used to treat pruritus (itching) associated with atopic dermatitis, urticaria (hives), and insect-bite reactions in cats and dogs. Its use is in cats and dogs is 'off label' or 'extra label'.
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Treats allergy symptoms. Zyrtec (cetirizine) can help you with some allergy symptoms without making you very drowsy. Clarinex (desloratadine) relieves allergy symptoms like sneezing, runny nose, congestion, hives, or itchy skin.
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['Zyrtec-D® (cetirizine HCl 5 mg/pseudoephedrine HCl 120 mg) Tablets.', 'Active Ingredients.', 'Inactive ingredients. colloidal silicon dioxide, croscarmellose sodium, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, titanium dioxide.']
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['Allegra Adult 24-Hour Allergy Relief. ... ', "Children's Zyrtec 24-Hour Allergy Relief Syrup With Cetirizine. ... ", 'Claritin 24-Hour Allergy Reditabs. ... ', 'Xyzal Allergy Relief Tablets. ... ', 'Zyrtec Prescription-Strength Allergy Medicine Tablets. ... ', 'Benadryl Ultratabs Antihistamine Allergy Relief.']
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Cetirizine, sold under the brand name Zyrtec among others, is a second-generation antihistamine used to treat allergic rhinitis (hay fever), dermatitis, and urticaria. It is taken by mouth.
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Cetirizine (Zyrtec) and loratadine (Claritin) are two common OTC antihistamines that are less likely to cause drowsiness. OTC antihistamines may be more appropriate for seasonal environmental allergies since you won't have to take them long-term.