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Doctor insights on: Medicine For Allegra Overdose

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Allegra (fexofenadine) overdose - anything to worry about?

Allegra (fexofenadine) overdose - anything to worry about?

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

Fexofenadine (Definition)

Fexofenadine is an antihistamine which is used to treat allergies such as hayfever, and hives. It can be taken once or twice a day. It is a second generation antihistamine and does not cause as much drowsiness as other antihistamines such as Diphenhydramine (benaryl) or chlorpheniramine. Always be careful about drowsiness with any antihistamine especially if driving ...Read more


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What is the definition or description of: Allegra (fexofenadine) overdose?

What is the definition or description of: Allegra (fexofenadine) overdose?

Allegra overdose: An overdose occurs when an excessive / dangerous dose of a drug / substance is used. "Symptoms of overdose may include: dizziness, drowsiness, dry mouth" REF: https://medlineplus. Gov/druginfo/meds/a697035.html ...Read more

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Are there other medicine I can take with Allegra (fexofenadine) D that won't cause bad side effects?

Are there other medicine I can take with Allegra (fexofenadine) D that won't cause bad side effects?

What medicines: Which medication you are taking that you are concerned if they are compatible with Allegra (fexofenadine) D? ...Read more

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Any dangers of overdosing on allegra (fexofenadine)?

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 a medicine that has to be taken consistently over a few days to work properly?

Is Allegra a medicine that has to be taken consistently over a few days to work properly?

About an hour...: Allegra is an "as needed" allergy medication so it's effect is not dependent of taking every day - of course for many people "as needed" IS daily. You should start to see the effects of the medication in about an hour after taking it. If you are not noticing improvement of symptoms in a day or two, it may not be the allergy medication for you. ...Read more

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If the regular daily dose of allegra (fexofenadine) is not enough is it better to take 2 allegra (fexofenadine) or take another medicine?

If the regular daily dose of allegra (fexofenadine) is not enough is it better to take 2 allegra (fexofenadine) or take another medicine?

Depends: What for? If rhinitis, then you need to see an Allergist to better determine the cause of symptoms (specific allergens, non-allergic triggers, structural probems) to better target the problem with alternative meds. If for chronic hives, then higher doses of antihistamine are often employed (but again, would recommend seeing an Allergist before proceding). No benefit in alternating antihistamine ...Read more

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Might I take allergy medicine (allegra) while I'm sick?

Might I take allergy medicine (allegra) while I'm sick?

Probably: I depends on what type of illness it is. Most of the time antihistamines such as Allegra (fexofenadine) are safe. Best to ask your doctor if it is appropriate in your situation. ...Read more

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What is the treatment for allegra (fexofenadine) overdose?

Depends: Any overdose by any medication needs to be evaluated immediately. The treatment will depend upoin what is ingested, how much is injested and how it was injested. ...Read more

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When should I take allergy medicine allegra (fexofenadine)?

When should I take allergy medicine allegra (fexofenadine)?

Without food: Fexofenadine (allegra) comes in 2 doses for adults, 60 mg. And 180 mg. The 60 mg dose is taken twice a day, every 12 hr. The 180 mg dose is taken once a day, usually in the morning and it is more effective than 60 mg, 2x/day. Fexofenadine should always be taken 1 hr. Before food because food, especially fatty food, interferes with fexofenadine absorption. ...Read more

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Allegra (fexofenadine hydrochloride 120 mg)at morning and levocet 5mg at night for 60 days. How effective these medicines for cholinergic utricaria?

Allegra (fexofenadine hydrochloride 120 mg)at morning and levocet 5mg at night for 60 days. How effective these medicines for cholinergic utricaria?

Mildly helpful: First, make sure you aren't having early anaphylaxis (generalized shock). If only heat hives (small, pinpoint) my experience is that cetirizine (or levocetirizine) combined with ranitidine (H2 antihistamine), either once or twice a day might work a little better. If not, you'll need stronger antihistamines like hydroxyzine (don't drive or operate machinery); at that point get seen by a doctor. ...Read more

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My skin has been itching from quite a long time. I have takena lot of medicines but could not find a permanent fix. I took cetrizine and allegra (fexofenadine) 180 for over a year. What should I do?

OTC: Those are otc meds so I assume you have not seen a doc. See an allergist or dermatologist but also make sure you have a chemistry and a TSH done. ...Read more

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I am getting itchy spots on my body should I take an allegra? Also I have a abcess near my rectum what medicine should I take

I am getting itchy spots on my body should I take an allegra? Also I have a abcess near my rectum what medicine should I take

Yes but: Without knowing the cause, Allegra may do nothing but also won't do any harm. As for rectal abscess, you need to see your doctor or an urgicare center ASAP. This is not something you should treat yourself. ...Read more

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I read on the internet that it is often more effective to alternate days taking zyrtec and allegra, (fexofenadine) than just one drug alone. Is that true? -allergies

Maybe, but...: I have not heard of anyone benefiting from alternating days. More like alternating weeks or months on the meds. Wouldn't hurt to try, I guess. ...Read more

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Does the allergy medicine Allegra (fexofenadine) come in different doses depending on ur height &weight? If so what would be the proper dose for a 19 yr old 117 5'6

Does the allergy medicine Allegra (fexofenadine) come in different doses depending on ur height &weight? If so what would be the proper dose for a 19 yr old 117 5'6

Age matters if...: 19 y/o Male asks Does the allergy medicine Allegra (fexofenadine) come in different doses depending on your height & weight? Allegra (fexofenadine) is usually 180mg for adults but can come in less doses 5, 30, 45, even 70mg depending on other health conditions like Kidney function provided one does not exceed 180mg in 24hr. Age matters if one is Elderly, but at 19 years, standard 180mg/ day dosing should be fine. ...Read more

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Allegra (fexofenadine) -d 12 hour allergy & congestion can show up on a drug test as amphetamine?

Allegra (fexofenadine) -d 12 hour allergy & congestion can show up on a drug test as amphetamine?

Possible: Since the Pseudoephedrine in the d is often used to manufacture amphetamine, I would guess that it can show up in a blood test. I would advise you to stay off of any decongestants if you are subjected to random drug test until I can look this up. ...Read more

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Between Allegra and Desloratadine, which drug has less blood-brain barrier permeability and is less anticholinergic?

Between Allegra and Desloratadine, which drug has less blood-brain barrier permeability and is less anticholinergic?

Allegra: Fexofenadine and loratadine, allegra and claritin, respectively, are the least sedating of all anti-histamines according to a recent NIH review. All anti-histamines cross the blood brain barrier to some extent. The real issue is sedation and allegra and claritin appear to win the context. They are also less anticholinergic than many others. ...Read more

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I'm having itching all over body with no rash. I take anti histamine drugs Allegra (fexofenadine) m. That only controls it not cures it. I also have asthama?

I'm having itching all over body with no rash. I take anti histamine drugs Allegra (fexofenadine) m. That only controls it not cures it. I also have asthama?

? dry skin: That's usually the case with atopic individuals, as you said you have asthma too, you may or may not start to have rash with continuous itching, antihistamines will just control the itch, skin care in form of bathing with cream soap, moisturizing your skin right after bathing while the skin is still moist, all that would help, keep your body well hydrated and watch your environment (cats, dust) ...Read more

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I have seasonal allergy and taking allegra (fexofenadine) d 24 hour. My blood pressure is gone up. Can the drug be the cause? Will my BP go down when I stop?

I have seasonal allergy and taking allegra (fexofenadine) d 24 hour. My blood pressure is gone up. Can the drug be the cause? Will my BP go down when I stop?

The D in your meds: Is sudafed which is a stimulant, thus it can raise the blood pressure. Once u stop taking the meds, the BP should normalize. Consider switching to plain Allegra, Claritin (loratadine) or zyrtec which have minimal effect on bp. Take care! ...Read more

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What other medicine is safe to take with allegra (fexofenadine) d? My husband is having a congested/runny nose, scratchy throat, pressure in his head?

What other medicine is safe to take with allegra (fexofenadine) d? My husband is having a congested/runny nose, scratchy throat, pressure in his head?

A nasal steroid...: Your husband should consider an allergy evaluation, and likely an intranasal steroid and nasal saline rinses to help relieve his symptoms. There are a few medication options, but would consider an evaluation to determine which medication is best. ...Read more

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Is OTC allegra (fexofenadine) as good as rx?

Yes.: It's identical. Same active ingredient and same dose. ...Read more

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2 allegra (fexofenadine) in 24 hours, is this okay?

Once a day: Allegra (fexofenadine) is a once a day anti histamine and should be used once a day. If one is going to use any medicine off label then a physicians opinion should be sought. ...Read more

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Can I take allegra (fexofenadine) if im on loratabs?

Can I take allegra (fexofenadine) if im on loratabs?

Loratadine / lorabid: The first is an antihistamine, the second an antibiotic. In either case it should be ok, but would speak to your doctor to clarify so that you are not taking double meds when not necessary, as Allegra (fexofenadine) is also an antihistamine. ...Read more

Dr. Michael Finkelstein
382 Doctors shared insights

Allegra (Definition)

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


Overdose (Definition)

When the maximum dose of medication ...Read more