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Doctor insights on: How Does Claritin Help My Allergies

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How does Claritin (loratadine) help my allergies?

How does Claritin (loratadine) help my allergies?

Blocking histamine: Claritin (loratadine) is one of a group of drugs called antihistamines. These block the natural chemical histamine from binding to its receptors which then trigger your body into having an allergic reaction. So, basically, you have histamine in your system which increases when you are exposed to something you are allergic to. Claritin (loratadine) and others block that histamine from hurting you. ...Read more

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Dr. John Chiu
2,491 doctors shared insights

Allergies (Definition)

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


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Could loratadine treat indoor allergies, or only outdoor allergies?

Could loratadine treat indoor allergies, or only outdoor allergies?

Both: Loratadine (brand name claritin) is fda approved for seasonal allergic rhinitis (hay fever) and hives. However, it is also effective for treating allergies caused by indoor allergens such as animal dander and dust. ...Read more

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Why did I get loratadine allergy?

Why did I get loratadine allergy?

Exposure: All allergies are developed by an immune system reaction to the substance in question. Therefore, allergy requires previous exposure. If you are prone to allergy problems, you can develop an allergy to a particular substance at anytime after you become exposed to it. It sometimes take only a few exposures and other times it takes many exposures. ...Read more

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I have loratadine allergy. What do I do?

I have loratadine allergy. What do I do?

Confirm, alternative: Allergy to antihistaminics is very rare. Fortunately other antihistaminics are availble to help control allergic symptoms. Confirmation is recommended since inactive ingredients of medications (such as corn starch or lactose) might also cause symptoms similar to allergic reaction. ...Read more

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Bad cedar allergies, tried claritin (loratadine)?

Cedar: Cedar is a late fall, winter and early spring problem in many states. If meds are ineffective orally, i would try a mix of intranasal anithistamines and steroids. Oral or injectables should be saved for emergencies. Remember allergy is genetic and only immunotherapy can rebuild your system. I found that allergy shots help my patients. ...Read more

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Does Claritin (loratadine) work for cat allergies?

Yes: Claritin (loratadine) is an antihistamine and is helpful for symptoms of rhinitis caused by an allergen. So if one is allergic to cats Claritin (loratadine) may be helpful depending upon the symptoms one has. ...Read more

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How often should I take Claritin (loratadine) for my allergies?

Depends: Claritin (loratadine) 10 mg is dosed once a day. To get the best results, it should be taken before the allergy season begins and before a known allergen exposure (such as going to a home with a cat if you are cat allergic). Claritin also comes in a combination with a decongestant (pseudoephedrine), called Claritin d24 (taken once a day) and Claritin d12 (taken twice a day about 12 hours apart). ...Read more

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Does Claritin (loratadine) work even if you don't have allergies?

Occasionally: It really depends on the nature and severity of your symptoms. Some people feel better after using Claritin for non-allergic issues, largely because antihistamines like Claritin can dry out the nasal passage. This can reduce a runny nose or mild nasal congestion, even if they're non-allergic in nature. Claritin is fairly weak, however, and other non-drowsy options like Allegra can be more helpful. ...Read more

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Is it safe to take loratadine long term, everyday, for allergies?

Is it safe to take loratadine long term, everyday, for allergies?

Prob ok: Antihistamines have been around for decades, and certainly many more potent than loratadine. They say worldwide the most common drug taken is diphenhydramine, mostly for the sedative properties (as a sleep aid). Antihistamines can affect certain types of glaucoma, and accentuate urine retention in those with prostate issues and dry mucous membranes, but usually not so much with loratadine per say. ...Read more

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Is it safe to take 2 loratadine 10mg tablets per day for allergies?

Is it safe to take 2 loratadine 10mg tablets per day for allergies?

Why do you ask?: The advantage of loratadine (and similar antihistamines) is that in recommended doses it doesn't cross the blood-brain barrier and thus are unlikely to cause central nervous system side effects; e.g. usually they don't make you drowsy. This is NOT necessarily true at higher doses, particularly in seniors. Why do you need more? Loratadine is weak. Might try an alternative. ...Read more

Dr. Ashraf Abdel Azeem
506 doctors shared insights

Claritin (Definition)

Claritin is a non-sedating antihistamine which is a kind of antihistamine type drug (common ...Read more