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Doctor insights on: Why Are Doctors Recommending Zantac For An Allergic Reaction Or Hives

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Why are doctors recommending Zantac (ranitidine) for an allergic reaction or hives?

Why are doctors recommending Zantac (ranitidine) for an allergic reaction or hives?

Good question: Hives (or urticaria) represent a sensitivity to something dilating the small vessels under the skin, causing a raised pink lesion; if u press on it, it will blanch, let it go it pinks up again. Many causes: foods, chemicals, perfumes, very often stress. Stress can increase acid formation in stomach, Zantac (ranitidine) reduces it. Over 50% of time, one can't find cause. I treat initially c antihistamines. ...Read more

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Dr. John Chiu
2,479 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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I had a allergic reaction to ciprofloxacin and the er doctor prescribed me zantac (ranitidine) for the allergic reaction is that normal?

I had a allergic reaction to ciprofloxacin and the er doctor prescribed me zantac (ranitidine) for the allergic reaction is that normal?

No: Zantac (ranitidine) (a H2 reverse agonist) does nothing by itself to control allergic reactions although it may at times be helpful when used together with a classical antihistamine particularly for itchy hives. ...Read more

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Doctor says I have Angioedema and hives told me to take Allegra 180mg in morning and Zyrtec10mg at night and Zantac (ranitidine) 150mg does this sound right.

Doctor says I have Angioedema and hives told me to take Allegra 180mg in morning and Zyrtec10mg at night and Zantac (ranitidine) 150mg does this sound right.

Yes: the use of second generation antihistamines as the ones prescribed to control hives and angioedema is right, use of zantac (ranitidine) is controversial nowadays, however, More important is seeing an allergist/dermatologist for management,trying to find a cause and monitor treatment.If angioedema is causing any respiratory problems,although rare, an epinephrine pen may be needed, check aaaai.org 4 an allergist ...Read more

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My allergic drug reactions usually consist of hives. Now that i take xyzal&zantac, am i at least somewhat protected from drug reactions if one occurs?

My allergic drug reactions usually consist of hives. Now that i take xyzal&zantac, am i at least somewhat protected from drug reactions if one occurs?

Yes: Both of those medicines help treat allergic reactions, but if you are very sensitive you still may get hives. If you have breathing difficulties from a reaction seek emergency care immediately. ...Read more

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If a person pre-medicates w/xyzal & zantac, (ranitidine) can they take an nsaid drug, if that drug has caused minor hives in the past? Get skin reaction only.

If a person pre-medicates w/xyzal & zantac, (ranitidine) can they take an nsaid drug, if that drug has caused minor hives in the past? Get skin reaction only.

Possibly: Both xyzal (levocetirizine) & zantac have anti-histamine effects & may decrease or eliminate a mild reaction to nsaid. However, this can be dangerous. Repeat exposures to something you are allergic to can be more severe, including breathing & swallowing difficulties, swelling of the face, lips, tongue or mouth. 6 classes of nsaids exist; you may not be allergic to other NSAID classes. An allergist may help a lot. ...Read more

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Doc,safe to take a pill of probiotic everyday?can it cause hives,allergies and any other side effects? I had high IGe .any relation to probiotics ?

Doc,safe to take a pill of probiotic everyday?can it cause hives,allergies and any other side effects? I had high IGe .any relation to probiotics ?

Usually: Most people can tolerate probiotics but extremely high doses can cause gastrointestinal upset. I am not aware of any link to hives or allergic diseases. In fact, there are studies showing that probiotics may lower the chance of developing eczema for infants. Do note that not all probiotics are created equal and different strains may be needed for different folks- thus no universal good guy. ...Read more

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Can I take a 180 mg OTC Allegra (fexofenadine) twice a day? Severe allergies (hives and itching), unable to see doctor for another week or so. Need relief.

Can I take a 180 mg OTC Allegra (fexofenadine) twice a day? Severe allergies (hives and itching), unable to see doctor for another week or so. Need relief.

Don't wait 4 a week: please see an allergist/your doctor sooner, two tablets of allegra (fexofenadine) 180 is already over precsribed for OTC strength, you need to be evaluated and prescribed prescription strength meds, goodluck ...Read more

Dr. Sanjay Talati
605 doctors shared insights

Ranitidine (Definition)

Treats and prevents heartburn with acid indigestion. Also treats stomach ulcers, gastroesophageal reflux disease (gerd), and conditions that cause your stomach to make too much acid (such as zollinger-ellison syndrome). This medicine ...Read more


Dr. Lawrence Kessler
3 doctors shared insights

Hives (Definition)

Also known as urticaria, hives are an outbreak of red bumps or wheals that appear quickly after exposure to certain allergens (foods, medications, other substances). Hives vary in size, are itchy, can burn, and can last for up to ...Read more