MedPath

Clemastine

Generic Name
Clemastine
Brand Names
Wal-hist 12 Hr Relief
Drug Type
Small Molecule
Chemical Formula
C21H26ClNO
CAS Number
15686-51-8
Unique Ingredient Identifier
95QN29S1ID

Overview

An ethanolamine-derivative, first generation histamine H1 antagonist used in hay fever, rhinitis, allergic skin conditions, and pruritus. It causes drowsiness.

Indication

For the relief of symptoms associated with allergic rhinitis such as sneezing, rhinorrhea, pruritus and acrimation. Also for the management of mild, uncomplicated allergic skin manifestations of urticaria and angioedema. Used as self-medication for temporary relief of symptoms associated with the common cold.

Associated Conditions

  • Allergic Rhinitis (AR)
  • Angioedema
  • Common Cold
  • Urticaria

Clinical Trials

Title
Posted
Study ID
Phase
Status
Sponsor
2024/09/19
Phase 2
Not yet recruiting
2024/03/18
Phase 2
Not yet recruiting
LMU Klinikum
2024/03/18
Phase 3
Recruiting
2023/10/18
Phase 3
Recruiting
2023/10/04
Phase 1
Not yet recruiting
2023/09/15
N/A
Completed
2022/05/04
Phase 1
Recruiting
2022/04/21
Phase 3
Recruiting
Amsterdam UMC, location VUmc
2019/02/01
Not Applicable
Completed
Chinese Academy of Medical Sciences, Fuwai Hospital
2017/04/12
Phase 1
Recruiting

FDA Drug Approvals

Approved Product
Manufacturer
NDC Code
Route
Strength
Effective Date
IPG Pharmaceuticals, Inc.
71085-081
ORAL
2.68 mg in 1 1
7/30/2025
Chartwell RX, LLC
62135-713
ORAL
0.67 mg in 5 mL
7/7/2023
Ayurax, LLC
73308-358
ORAL
0.67 mg in 5 mL
3/4/2021
Northwind Pharmaceuticals, LLC
51655-425
Oral
2.68 mg in 1 1
7/21/2014
Teva Pharmaceuticals USA, Inc.
0093-0308
ORAL
2.68 mg in 1 1
8/14/2021
New HeightsRx, LLC
84044-268
ORAL
2.68 mg in 1 1
5/3/2025

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
No HSA approvals found for this drug.

NMPA Drug Approvals

Approved Product
Company
Approval Number
Drug Type
Dosage Form
Approval Date
No NMPA approvals found for this drug.

PPB Drug Approvals

Approved Product
Registration No.
Company
Licence No.
Strength
Registration Date
No PPB approvals found for this drug.

TGA Drug Approvals

Approved Product
ARTG ID
Sponsor
Registration Type
Status
Registration Date
No TGA approvals found for this drug.

Health Canada Drug Approvals

Approved Product
Company
DIN
Dosage Form
Strength
Market Date
No Health Canada approvals found for this drug.

CIMA AEMPS Drug Approvals

Approved Product
Company
Registration Number
Pharmaceutical Form
Prescription Type
Status
No CIMA AEMPS (Spain) approvals found for this drug.

Philippines FDA Drug Approvals

Approved Product
Company
License Number
Dosage Form
Strength
Approval Date
No Philippines FDA approvals found for this drug.

Saudi SFDA Drug Approvals

Approved Product
Company
License Number
Dosage Form
Strength
Approval Date
No Saudi SFDA approvals found for this drug.

Malaysia NPRA Drug Approvals

Approved Product
Company
Registration Number
Dosage Form
Strength
Approval Date
No Malaysia NPRA approvals found for this drug.

UK EMC Drug Information

Medicine Name
MA Holder
MA Number
Pharmaceutical Form
Active Ingredient
Authorization Date
No UK EMC drug information found for this drug.

Help Us Improve

Your feedback helps us provide better drug information and insights.

MedPath

Empowering clinical research with data-driven insights and AI-powered tools.

© 2025 MedPath, Inc. All rights reserved.