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Fexofenadine

Generic Name
Fexofenadine
Brand Names
Allegra, Allegra-D, Mucinex Non-drowsy Allergy, Wal-fex, Telfast
Drug Type
Small Molecule
Chemical Formula
C32H39NO4
CAS Number
83799-24-0
Unique Ingredient Identifier
E6582LOH6V

Overview

Fexofenadine is an over-the-counter second-generation antihistamine used in the treatment of various allergic symptoms. It is selective for the H receptor, carries little-to-no activity at off-targets, and does not cross the blood-brain barrier - this is in contrast to previous first-generation antihistamines, such as diphenhydramine, which readily bind to off-targets that contribute to side effects such as sedation. Fexofenadine is the major active metabolite of terfenadine and is administered as a racemic mixture in which both enantiomers display approximately equivalent antihistamine activity.

Background

Fexofenadine is an over-the-counter second-generation antihistamine used in the treatment of various allergic symptoms. It is selective for the H receptor, carries little-to-no activity at off-targets, and does not cross the blood-brain barrier - this is in contrast to previous first-generation antihistamines, such as diphenhydramine, which readily bind to off-targets that contribute to side effects such as sedation. Fexofenadine is the major active metabolite of terfenadine and is administered as a racemic mixture in which both enantiomers display approximately equivalent antihistamine activity.

Indication

In the United States, fexofenadine is indicated for the symptomatic treatment of allergic rhinitis in patients ≥2 years old and chronic idiopathic urticaria in patients ≥6 months old. In Canada, fexofenadine carries the same indications but is approved only for patients ≥12 years old. Fexofenadine is also available in combination with pseudoephedrine for the symptomatic treatment of season allergic rhinitis in patients ≥12 years old.

Associated Conditions

  • Allergic Rhinitis (AR)
  • Chronic Idiopathic Urticaria
  • Seasonal Allergic Rhinitis

Clinical Trials

Title
Posted
Study ID
Phase
Status
Sponsor
2025/01/21
Phase 2
Recruiting
2024/08/12
Phase 2
Not yet recruiting
Second Affiliated Hospital, School of Medicine, Zhejiang University
2024/06/20
Phase 4
Completed
2024/02/29
Phase 1
Completed
Opella Healthcare Group SAS, a Sanofi Company
2024/01/16
Phase 1
Completed
2023/08/31
Phase 4
Completed
2023/07/06
Phase 1
Completed
2023/02/09
Phase 4
Not yet recruiting
2023/01/20
Phase 3
Completed
Opella Healthcare Group SAS, a Sanofi Company
2022/07/18
Phase 1
Completed
OrchestratePharma GmbH

FDA Drug Approvals

Approved Product
Manufacturer
NDC Code
Route
Strength
Effective Date
STAT RX USA LLC
16590-852
ORAL
180 mg in 1 1
12/15/2009
Strategic Sourcing Services LLC
70677-1278
ORAL
60 mg in 1 1
5/9/2025
Physicians Total Care, Inc.
54868-5419
ORAL
180 mg in 1 1
9/25/2012
Aphena Pharma Solutions - Tennessee, Inc.
43353-244
ORAL
180 mg in 1 1
7/30/2008
Dr. Reddy's Laboratories Limited
55111-783
ORAL
60 mg in 1 1
5/6/2025
NUVICARE LLC
84324-008
ORAL
180 mg in 1 1
6/9/2025
Lake Erie Medical DBA Quality Care Products LLC
49999-772
ORAL
180 mg in 1 1
6/7/2010
CVS Pharmacy
69842-914
ORAL
180 mg in 1 1
4/16/2025
Physicians Total Care, Inc.
54868-5409
ORAL
180 mg in 1 1
2/18/2010
Bryant Ranch Prepack
71335-2165
ORAL
60 mg in 1 1
9/9/2021

EMA Drug Approvals

Approved Product
Authorization Holder
Status
Issued Date
No EMA approvals found for this drug.

HSA Drug Approvals

Approved Product
Manufacturer
Approval Number
Dosage Form
Strength
Approval Date
TELFAST TABLET 120 mg
SIN11704P
TABLET, FILM COATED
120 mg
11/1/2001
TELFAST TABLET 180 mg
SIN11699P
TABLET, FILM COATED
180 mg
10/27/2001
FEXODIN FILM COATED TABLET 120MG
SIN15714P
TABLET, FILM COATED
120mg
6/12/2019
Telfast Oral Suspension 6 mg/ml
SIN14199P
SUSPENSION
30.00 mg/5 ml
7/20/2012
EXODIN TABLET 180MG
SIN14591P
TABLET, FILM COATED
180mg
8/18/2014
FEXOFEN FILM-COATED TABLET 180MG
SIN16296P
TABLET, FILM COATED
180.00mg
8/10/2021
TELFAST D TABLET
SIN12071P
TABLET, FILM COATED
60 mg
9/13/2002

NMPA Drug Approvals

Approved Product
Company
Approval Number
Drug Type
Dosage Form
Approval Date
Fexofenadine Hydrochloride Tablets
国药准字HJ20210012
化学药品
片剂
2/10/2021
Fexofenadine Hydrochloride Tablets
国药准字H20060149
化学药品
片剂
5/8/2020
Fexofenadine Hydrochloride Tablets
国药准字H20060330
化学药品
片剂
8/30/2020
Fexofenadine Hydrochloride Tablets
国药准字HJ20210011
化学药品
片剂
2/10/2021
Fexofenadine Hydrochloride Tablets
国药准字H20153221
化学药品
片剂
8/12/2020
Fexofenadine Hydrochloride Tablets
国药准字H20080437
化学药品
片剂
3/24/2023
Fexofenadine Hydrochloride Tablets
国药准字H20080123
化学药品
片剂
2/21/2023
Fexofenadine Hydrochloride Tablets
国药准字H20130040
化学药品
片剂
1/6/2023
Fexofenadine Hydrochloride Tablets
国药准字H20080710
化学药品
片剂
4/23/2023
Fexofenadine Hydrochloride Tablets
国药准字H20090333
化学药品
片剂
5/5/2024

TGA Drug Approvals

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