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Review: could Allegra cause Anaphylaxis?

Summary: Anaphylaxis could be caused by Allegra, especially for people who are female, 40-49 old, have been taking the drug for < 1 month, also take Xolair, and have Asthma.

We study 22,758 people who have side effects while taking Allegra from FDA and social media. Among them, 233 have Anaphylaxis. Find out below who they are, when they have Anaphylaxis and more.

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Allegra

Allegra (latest outcomes from 23,802 users) has active ingredients of fexofenadine hydrochloride. It is often used in allergies.

Anaphylaxis

Anaphylaxis (serious allergic reaction that is rapid in onset and may cause death) (latest reports from 107,197 patients) has been reported by people with multiple sclerosis, asthma, high blood pressure, premedication, pain.

On Apr, 10, 2014: 22,748 people reported to have side effects when taking Allegra. Among them, 233 people (1.02%) have Anaphylaxis. They amount to 0.22% of all the 106,967 people who have Anaphylaxis on eHealthMe.

Trend of Anaphylaxis in Allegra reports

Time on Allegra when people have Anaphylaxis * :

< 1 month1 - 6 months6 - 12 months1 - 2 years2 - 5 years5 - 10 years10+ years
Anaphylaxis95.00%5.00%0.00%0.00%0.00%0.00%0.00%

Gender of people who have Anaphylaxis when taking Allegra * :

FemaleMale
Anaphylaxis78.01%21.99%

Age of people who have Anaphylaxis when taking Allegra * :

0-12-910-1920-2930-3940-4950-5960+
Anaphylaxis0.00%3.45%2.46%7.39%14.78%33.50%24.14%14.29%

Severity of Anaphylaxis when taking Allegra ** :

n/a

How people recovered from Anaphylaxis ** :

n/a

Top conditions involved for these people * :

  1. Asthma (61 people, 26.18%)
  2. Rhinitis allergic (27 people, 11.59%)
  3. Hypersensitivity (25 people, 10.73%)
  4. Gastrooesophageal reflux disease (22 people, 9.44%)
  5. Urticaria (17 people, 7.30%)

Top co-used drugs for these people * :

  1. Xolair (58 people, 24.89%)
  2. Singulair (45 people, 19.31%)
  3. Albuterol (44 people, 18.88%)
  4. Prevacid (35 people, 15.02%)
  5. Flonase (31 people, 13.30%)

* Approximation only. Some reports may have incomplete information.

** Reports from social media are used.

How to use the study: print a copy of the study and bring it to your health teams to ensure drug risks and benefits are fully discussed and understood.

Related topic: Allegra, Anaphylaxis

You can also:

On eHealthMe, Allegra (fexofenadine hydrochloride) is often used for allergies. Find out below the conditions Allegra is used for, how effective it is, and any alternative drugs that you can use to treat those same conditions.

What is Allegra used for and how effective is it:

Other drugs that are used to treat the same conditions:

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Could your condition cause it?

Comments from related studies:

  • From this study (1 week ago):

  • My WBC count was 15.6 last week before taking Valtrex, now after finding many cherry angiomas since starting the Valtrex I was taken off the medicine and had more blood tests run. Now my WBC count is 16.1 after being on the medicine for almost a week.

    Reply

  • From this study (2 weeks ago):

  • I have been struggling with sinusitis for almost 2 years now and they can't stop the dripping my nose from running,down throat to chest, lots of plegm, and have been congested for over a year and half. Since then, have tried me on every sort of antihistimine, Loradine, Zyrtec, Certirizine, and fluticasone spray, which didn't stop running/congestion. Been to ER three times to get on antibiotics since also caused gum disease/gingivitis per Periodontus who states it's underlying medical not dental. Also started taking regular OTC sudafed for congestion, and occasional cough/congestion. Now allergist says my IgG Immoglobins are high and was told that since I have constant bacterial infections. Allergist believes running nose/congestion is from a fungus infection or vasomotor rhinitis and need culture. Am waiting to see ENT. Prior to this last 2 years, my sinus was always controlled and maybe every year to two years, an infection occurred and antibiotics quickly got rid of it, but not this time. I read infections could also cause liver enzymes to rise to and my past blood tests in 2008 shows only had a mild increase in SGPT ALT only. Prior use, I used pain pills, vicodin/codeine/darvocet/, but stay away from then now due to liver enzymes in ALT rising, and only use motrin, sleeping med., cymbalta and occasional fioricet. Had gall bladder infected and removed, and tests show fatty liver and slight kidney lesion, but not enough for them to do anything.

    Reply

    help on Apr, 9, 2014:

    F, 48, fibromylagia, chronic sinusitis, repeated infections, which believe long-term pain meds cause elevated liver enzymes, went off most, and now because of constant trying of allergy meds, and can't stop running nose, long term infections of bacteria and possibly fungus, so not sure what is causing elevated enzymes.

    Reply

  • From this study (3 weeks ago):

  • I went to the emergency room because I noticed that the bottom of my face was swollen on the right side next to my chin. I was not in any pain, but thought it was strange and because I had never noticed anything like that before. The doctor was not sure what was wrong with me, said he thought it was a blocked salivary gland, and prescribed me ciproflaxin and clyndamyacin. I have been perscribed both medications at seperate times no more than 2 years before this happened without having any marked adverse response. I filled the perscriptions immediately after leaving the hospital and took them once I arrived at home. Shortly, (10-40 minutes - less than one hour) after I took both pills together as instructed at the hospital, I started having extreme stomach pain and cramps, so extreme that i was writhing in pain and said that i felt like i had been poisoned. I lay down to try to go to bed becasue i was in so much pain, and woke up 1-2 hours later, itching more severely than ever before everywhere on my body including my scalp, the palms of my hands, and the soles of my feet. When I turned on the light I saw that my entire body was completely red and covered with hives, then my face started swelling up, my lips, cheeks, eyes, it seemed like my entire head was swelling. I'm not certain if my tongue was swelling or if i started having a panic attack that made it seem difficult to breathe (i have had panic attacks before). went to emergency room was treated with epi-pen, pepcid, benadryl, among other meds i cannot recall. nothing like this has ever occured before or since.

    Reply

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