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Doctor insights on: Allegra Nausea

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Dr. Ravi Chand
334 doctors shared insights

Fexofenadine (Definition)

Fexofenadine, previously marketed under the brand name allegra, is an antihistamine similar to ...Read more


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17 year old female. Taking allegra (fexofenadine) for chronic hives, but have been feeling very nauseous. Could allegra (fexofenadine) be causing the nausea?

17 year old female. Taking allegra (fexofenadine) for chronic hives, but have been feeling very nauseous. Could allegra (fexofenadine) be causing the nausea?

Possible but: Any drug or food can cause nausea for some people and thus it is possible. However it is not a common side effects from allegra. I would suggest that you stop taking Allegra (and try another otc antihistamine which is not fexofenadine) for a few days. If the nausea continues, then you should consider seeing a doctor. Do remember that even urinary tract infection or pregnancy can cause nausea. ...Read more

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Why would allegra (fexofenadine) be prescribed?

Why would allegra (fexofenadine) be prescribed?

Many reasons.: Allegra is an antihistamine which can be used for itching of the skin, nose, eyes. It is mainly used to treat allergic reactions and to relieve seasonal allergic eye and nose symptoms. It is not very effective for nasal congestion unless used with another medication such as a nasal steroid or oral decongestant. ...Read more

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Any dangers of overdosing on allegra (fexofenadine)?

Possibly: Allegra (fexofenadine) has been studied at very high doses with no clinically significant adverse events. However, if a high enough dose is taken there may be adverse effects. I would be most concerned about potential cardiac arrhythmias at very very high doses. ...Read more

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Is allegra (fexofenadine) a stimulant?

No: Allegra (fexofenadine) is an anti-histamine. It is one of the newer non-sedating anti-histamines and is used to treat people who are suffering allergy symptoms. ...Read more

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How long does Allegra-D stay in your system?

12 or 24 hours: allegra-d 12 hours, stays for 12 hours, as well the 24 hours preparation, stays for 24 hours, it's a combo medicine, ...Read more

Dr. Michael Finkelstein
358 doctors shared insights

Allegra (Definition)

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


Dr. Stephen Noga
1,712 doctors shared insights

Nausea (Definition)

Nausea is the sensation of having ...Read more