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Doctor insights on: Antihistamines Claritin

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Do antihistamines (Claritin/ clarinase) aggravate lower esophagus spasm?

Do antihistamines (Claritin/ clarinase) aggravate lower esophagus spasm?

Not usually.: This is not a frequent side effect of Claritin. If these sensations persist, you should contact your doctor or your gastroenterologist. Good luck. ...Read more

Benadryl (Definition)

Diphenhydramine is a sedating antihistamine which is a kind of antihistamine type drug (common ...Read more


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My wife has graves disease (well controlled) and seasonal allergies. Does her condition preclude the use of antihistamines? Claritin (loratadine) 't enough.

My wife has graves disease (well controlled) and seasonal allergies. Does her condition preclude the use of antihistamines? Claritin (loratadine) 't enough.

No, it doesn't: If the graves disease is well controlled (an autoimmune thyroid disorder), then treatment of other conditions such as allergies is not a problem. Perhaps, i would avoid decongestants such as pseudo Ephedrine that are often added to the antihistamine, because it cause rapid pulse, palpitations. If Claritin (loratadine) not helpful, worth trying others, such as zyrtec, allegra, allerest, (but not with the 'd'). ...Read more

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If a red, itchy rash with no contact triggers improves with antihistamines (claritin (loratadine) or low dose doxepin) does that mean it is probably eczema?

Itchy rash: Antihistamines control the itch, whether it is eczema or not, the mechanism of itching is common to a number of rashes and antihistamines only help with the end result but not with the cause. To have a proper diagnosis, you need to have yourself evaluated by a dermatologist or allergist. ...Read more

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How much antihistamine does Claritin (loratadine) have in it?

How much antihistamine does Claritin (loratadine) have in it?

Claritin (loratadine): Hello, the adult dose of Claritin (loratadine) is 10 mg. There is also filler advent added to the tablet but the mg of Loratadine (claritin) is 10. ...Read more

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Is it bad to take antihistamine and Claritin (loratadine) same day ?

Is it bad to take antihistamine and Claritin (loratadine) same day ?

Maybe: Claratin is an antihistamine. Do not take two antihistamines without the advice of a physician. ...Read more

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I see there is no way to cure eczema, but how much do antihistamines like claritin, (loratadine) clarinex, or zyrtec help prevent eczema?

Eczema - cure: Eczema can go away if it is caused by something like a food or chemical but it requires a thorough investigation by a allergist or dermatologist. Some hereditary forms cannot be cured but only controlled by medications. Antihistamines help to reduce itching but cannot cure this condition. ...Read more

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Are non-drowsy antihistamines such as Claritin (loratadine) effective for treating asthma?

Not directly: Claritin is useful to reduce the symptoms of allergies, especially post nasal drip. It should be used with other medications. Mid you are having serious allergic symptoms that worsen your asthma, see an allergist. ...Read more

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I'm trying to decide on the best antihistamine (for colds) for my 2 year old to use. Which do you recommend fexofenadine or loratadine ?

I'm trying to decide on the best antihistamine (for colds) for my 2 year old to use. Which do you recommend fexofenadine or loratadine ?

Neither: Neither antihistamines or cold medications recommended for children under age 6. You can use saline nose drops to loosen the mucus. ...Read more

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How many weeks does it take for claritin (loratadine) 10mg to work? How long should I give it a try before deciding to switch to a different antihistamine?

A few hours: Claritin (loratadine) should start working within a couple of hours. If it doesn't not help at all, then switching to another won't do you much good. If it does help somewhat, then you may try the other alternatives which may possess more antihistamine effect than Claritin (loratadine). ...Read more

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I have noticed that my body is immune to loratadine based antihistamines (doesn't make me tired) but any others do. Does this means tolerance?

I have noticed that my body is immune to loratadine based antihistamines (doesn't make me tired) but any others do. Does this means tolerance?

Non-sedating: Loratadine is considered a non-sedating antihistamine. It is supposed to treat allergic symptoms without making you drowsy. Other older antihistamines like benadryl (diphenhydramine) are very sedating. ...Read more

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My husband is always suffering fron rhinitis and always taking loratadine antihistamine almost everyday. is it safe? is there some other med that will cure his rhinitis?

My husband is always suffering fron rhinitis and always taking loratadine antihistamine almost everyday. is it safe? is there some other med that will cure his rhinitis?

Alternatives: Here are some options Taking loratadine long term is safe. He could also try other antihistamines. Steroid nasal sprays are also safe to use long term and often more effective. Allergy testing may reveal avoidable triggers. The only treatment that even comes close to a cure is allergy immunotherapy. See an allergist to find the best option for your loved one. ...Read more

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I'm 17 and took 3 loratadine tablets, 10 mg/ Antihistamine in the last 24 hours, are there going to be any issues I should be worried about ?

I'm 17 and took 3 loratadine tablets, 10 mg/ Antihistamine in the last 24 hours, are there going to be any issues I should be worried about ?

Probably not but...: Long acting anti-histamines should not be used more than one in 24 hours. Taking more has been associated with heart issues but that is still unlikely to occur. If you have any chest palpitations you should be evaluated. For future reference, these medications can take 4 - 6 hours to work. If you are still not getting relief you can safely add a short acting anti-histamine (Benadryl). ...Read more

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Can Claritin (loratadine) non-drowsy antihistamine still cause drowsiness?

Can Claritin (loratadine) non-drowsy antihistamine still cause drowsiness?

Yes: Claritin is a second generation antihistamine which causes much less drowsiness than first generation antihistamine, like benadryl (diphenhydramine). The number of people who feel drowsy on Claritin is so low that it is labeled "non-drowsy". But each of us is unique. I have plenty of patients who feel drowsy on claritin, especially petite women. ...Read more

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Dr. Paul Carter
626 doctors shared insights

Antihistamine (Definition)

Sedating and non-sedating antihistamines prevent and treat allergic reactions, and are ...Read more


Dr. Ashraf Abdel Azeem
525 doctors shared insights

Claritin (Definition)

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