Get Informed: Fexofenadine
Active Ingredient(s)
Fexofenadine
What does it do?
This product is commonly used for the treatment of allergic rhinitis and urticaria (hives). It works by blocking the action of histamine, an important chemical released during allergic reactions.
- Last Text Update:
- 2010-Mar-20 10:54 AM
- Last Data Update:
- 2010-Mar-19 9:03 PM
Other Names
- Allegra
- Fexofenadine
- Telfast
How Safe Is It?
- Your Risk Rating
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- Average Risk Rating
-
- Pregnancy Category:
- C
- Black Box Warning:
- No
Facts & Figures
- Date Approved
- 25 Jul 1996
- Est US Patients*
- 3,933,000
- Generic Available
- Yes
- OTC Available
- No
User Age Distribution*
< 21
21-39
40-59
60+
Age (Years)
* Estimated number of US people currently taking Fexofenadine or its active ingredient based on population adjusted patient numbers registered with iGuard.org.
Fexofenadine Safety Report
Learn more about iGuard's risk ratings
- Please login or register (it's free) so iGuard can check how Fexofenadine interacts with other drugs and diseases in your profile.
What is Fexofenadine used for?
iGuard is currently tracking more than 26,200 patients that use Fexofenadine (or similar drugs with the same active ingredient(s)). Use the table below to learn why iGuard users take this product; click on any underlined condition to get information on other medications used for treatment.
| Disease / Condition | % | Average Severity |
|---|---|---|
| Allergies | 94% | 
|
| Nasal/Sinus Congestion | 19% |
|
| Asthma | 8% | 
|
| Other | 2% | 
|
How well does Fexofenadine work?
iGuard regularly polls our more than 26,200 users taking Fexofenadine (or similar drugs with the same active ingredient(s)) using the Treatment Satisfaction Questionnaire for Medications (TSQM) . This feedback is continuously updated in tables below for the benefit of the iGuard community. To request scores for specific patient subgroups, please contact research@iguard.org.
Average Satisfaction Score
(out of 10)
Average Effectiveness Score
(out of 10)
- 80%
- of patients are confident that the good things about Fexofenadine outweigh the bad things.
- 2%
- of patients wish they were told more before they started taking Fexofenadine.
Common Side Effects of Fexofenadine
iGuard regularly polls our more than 26,200 users taking Fexofenadine (or similar drugs with the same active ingredient(s)) to monitor the development and frequency of side-effects. This feedback is continuously updated in tables and graphs below for the benefit of the iGuard community.
15% of patients experience side-effects on Fexofenadine
2% of patients experience signifcant side-effects on Fexofenadine
Most Common Side Effects...
-
Drowsiness
-
Dryness
-
= 10%
Less than 1%: Dizziness, Insomnia, Palpitations, Urinary Frequency
Global Patient Feedback for Fexofenadine ( Post a comment )
Question/Comment:
I have been taking Allegra for years - it is the only medication so far without side effects for me. As long as it works, I will continue using it.
63 year old Female – Source: iGuard United States
Posted: 2010-03-14 16:54:12
Question/Comment:
I have been taking fexofenadine to control minor skin allergies and sinusitis. My Dr sent me to a specialist to find out why I couldn't shift it. I had minor surgery to correct a deviated septum. Nasonex and Iprotropium bromide sprays, a seawater spray and the fexofenadine have reduced my sinusistis from being a constant problem to being an occasional problem that is greatly reduced in its severity. I have had no side-effects from fexofenadine.
37 year old Female – Source: iGuard United Kingdom
Posted: 2010-02-26 06:28:33
Question/Comment:
I have been taking this drug for years. Water is always the safes bet when taking drugs. I always take it with a full glass of water.
64 year old Female – Source: iGuard United States
Posted: 2009-09-03 13:04:31
Question/Comment:
I must say this pill was my miracle drug. after many months of non-stop tests and medicines i didn't need. i finally had a dr put me on the allegra. overnight i felt so much better!
they had been treating me for asthma but i really only had severe allergies! i was on advair, flonase, singulair and sometimes prednisone. i gained 40 lbs from these stupid medicines and had a multitude of awful side effects.
its been 2 weeks now since being off the steriods and just on the allegra. i must say i'm very pleased! i always take it with food as i do have acid reflux and have had ulcers. the first night i took it with strawberry yogurt and had massive stomach pains. ever since then i just take it with cereal or bread! no real side effects just awesome relief!!! thanks so much!
31 year old Female – Source: iGuard United States
Posted: 2009-08-20 11:44:03
Answer/Reply:
I used to take Zyrtex for my allergies but after the made it available over the counter the pill was not as good as before so my Dr. put me on allegra and I must say it work. Thank you Allegra I really can't go all day long with tissues and swollen eyes. It really word and I take it with toast in the morning.
73 year old Female – Source: iGuard United States
Posted: 2009-08-25 22:42:05
Question/Comment:
I have been taking Allegra for years. When my doctor had to increase my dosage of Allegra, my blood pressure shot up. My allergies were so severe...I was on Allegra, Nasal Spray and I was using allergy drops for my eyes. I always ended up with sinus infections or upper respiratory infections from allergies...at one point he put me on steroids. I am now on Atenolol for high blood pressure.
48 year old Female – Source: iGuard United States
Posted: 2009-07-14 09:13:26
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Comments may be either questions or answers to previously posted questions. Any iGuard.org user may post questions and reply.
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Patient Comments about
Fexofenadine