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Doctor insights on: Too Much Antihistamine

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Dr. Paul Carter
601 doctors shared insights

Antihistamine (Definition)

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


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Is it possible for too much decongestant/antihistamine to make my sinuses worse?

Is it possible for too much decongestant/antihistamine to make my sinuses worse?

Yes but not likely: Some antihistamines may thicken the mucous. Oral decongestants don't cause much in the way of tolerance. It is more likely that your condition itself has gotten worse or become complicated by infection perhaps. ...Read more

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Is there an antihistamine for an infant that is safe, and how much would I give her?

Is there an antihistamine for an infant that is safe, and how much would I give her?

Yes: Cetirazine(zyrtec) is approved for infants over 6mo at a dose of 1/2 tsp/day with additional dosing for older infants. Other preparations may be considered but all should be used in consultation with your doctor. Much of the stuffiness of infants is assumed to be allergies when it is really dust/smoke& other air irritants that antihistamines will not help, so discuss your conserns with dr ...Read more

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What is the best OTC antihistamine?

What is the best OTC antihistamine?

OTC antihistamines: The second generation zyrtec, allergra or Claritin (loratadine) are comparative. None are perfect. Zyrtec is slightly more likely to make you tired ot sleepy. Often one works a little better than another and i adise you to test all three. ...Read more

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Is antihistamine harmful to the body?

Is antihistamine harmful to the body?

No: Antihistamines are a class of medication used since the 1940s. They are used to treat allergic conditions and are very safe. The newer generation antihistamines have even less side effects compared to first generation or old antihistamines. ...Read more

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When should you take an antihistamine?

Multiple reasons: Depending on the type of antihistamine used they can be used to treat things such as allergy symptoms, nausea, dizziness, motion sickness, anxiety, itching, and difficulty sleeping. ...Read more

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What are the common uses of antihistamine?

What are the common uses of antihistamine?

Antihistamine 4 itch: Antihistamines (ah) block histamine receptors and stop histamine from causing itching and swelling. They are mainly used to treat allergies and hives. Some are sedating; those are used as sleep aids. Many otc sleep meds contain Diphenhydramine (benadryl). ...Read more

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What is the best time to take an antihistamine?

Any time: You can take antihistamines any time of the day.Take them same time of day everyday. ...Read more

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Why young people more sensitive to antihistamine?

Not true: Everyone reacts to medications differently although the differences may be minor in most cases. There is no study showing that young people are more sensitive to antihistamine, especially the newer ones. ...Read more